[Kernel-packages] [Bug 837076] Re: 8086:422b [Samsung NP900X3A-A01AU] Intel Centrino Ultimate-N 6300 AGN and packet loss using WiFi-N
Shaawin Vsingam, thank you for your comment. So your hardware and problem may be tracked, could you please file a new report with Ubuntu by executing the following in a terminal while booted into a Ubuntu repository kernel (not a mainline one) via: ubuntu-bug linux For more on this, please read the official Ubuntu documentation: Ubuntu Bug Control and Ubuntu Bug Squad: https://wiki.ubuntu.com/Bugs/BestPractices#X.2BAC8-Reporting.Focus_on_One_Issue Ubuntu Kernel Team: https://wiki.ubuntu.com/KernelTeam/KernelTeamBugPolicies#Filing_Kernel_Bug_reports Ubuntu Community: https://help.ubuntu.com/community/ReportingBugs#Bug_reporting_etiquette When opening up the new report, please feel free to subscribe me to it. Thank you for your understanding. Helpful bug reporting tips: https://wiki.ubuntu.com/ReportingBugs ** Changed in: linux (Ubuntu Trusty) Status: Confirmed = Incomplete -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/837076 Title: 8086:422b [Samsung NP900X3A-A01AU] Intel Centrino Ultimate-N 6300 AGN and packet loss using WiFi-N Status in The Linux Kernel: New Status in “linux” package in Ubuntu: Incomplete Status in “linux” source package in Saucy: Confirmed Status in “linux” source package in Trusty: Incomplete Bug description: I have recently swapped the internal WiFi adapter with an Ultimate-N 6300 and I'm seeing a lot of packet loss. Some additional info is as follows: wlan1 IEEE 802.11abgn ESSID:star-local Mode:Managed Frequency:2.412 GHz Access Point: 00:22:75:29:EC:61 Bit Rate=121.5 Mb/s Tx-Power=15 dBm Retry long limit:7 RTS thr:off Fragment thr:off Power Management:off Link Quality=49/70 Signal level=-61 dBm Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0 Tx excessive retries:205 Invalid misc:5 Missed beacon:0 $ ping -c 20 192.168.2.1 PING 192.168.2.1 (192.168.2.1) 56(84) bytes of data. 64 bytes from 192.168.2.1: icmp_req=1 ttl=64 time=3.83 ms 64 bytes from 192.168.2.1: icmp_req=2 ttl=64 time=2.56 ms 64 bytes from 192.168.2.1: icmp_req=3 ttl=64 time=2.59 ms 64 bytes from 192.168.2.1: icmp_req=4 ttl=64 time=2.57 ms 64 bytes from 192.168.2.1: icmp_req=5 ttl=64 time=3.23 ms 64 bytes from 192.168.2.1: icmp_req=6 ttl=64 time=3.13 ms 64 bytes from 192.168.2.1: icmp_req=7 ttl=64 time=4.04 ms 64 bytes from 192.168.2.1: icmp_req=11 ttl=64 time=3.89 ms 64 bytes from 192.168.2.1: icmp_req=12 ttl=64 time=3.80 ms 64 bytes from 192.168.2.1: icmp_req=13 ttl=64 time=82.4 ms 64 bytes from 192.168.2.1: icmp_req=14 ttl=64 time=105 ms 64 bytes from 192.168.2.1: icmp_req=15 ttl=64 time=2.57 ms 64 bytes from 192.168.2.1: icmp_req=16 ttl=64 time=2.97 ms 64 bytes from 192.168.2.1: icmp_req=17 ttl=64 time=2.57 ms 64 bytes from 192.168.2.1: icmp_req=18 ttl=64 time=2.57 ms 64 bytes from 192.168.2.1: icmp_req=19 ttl=64 time=3.94 ms 64 bytes from 192.168.2.1: icmp_req=20 ttl=64 time=3.51 ms --- 192.168.2.1 ping statistics --- 20 packets transmitted, 17 received, 15% packet loss, time 19028ms rtt min/avg/max/mdev = 2.567/13.879/105.633/29.547 ms https://bugs.launchpad.net/ubuntu/+source/linux/+bug/837076/+attachment/3929375/+files/log WORKAROUND: Remove and reload the module with 11n_disable=1. wlan1 IEEE 802.11abg ESSID:star-local Mode:Managed Frequency:2.412 GHz Access Point: 00:22:75:29:EC:61 Bit Rate=54 Mb/s Tx-Power=15 dBm Retry long limit:7 RTS thr:off Fragment thr:off Power Management:off Link Quality=49/70 Signal level=-61 dBm Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0 Tx excessive retries:0 Invalid misc:32 Missed beacon:0 $ ping -c 20 192.168.2.1 PING 192.168.2.1 (192.168.2.1) 56(84) bytes of data. 64 bytes from 192.168.2.1: icmp_req=1 ttl=64 time=1.82 ms 64 bytes from 192.168.2.1: icmp_req=2 ttl=64 time=1.17 ms 64 bytes from 192.168.2.1: icmp_req=3 ttl=64 time=1.80 ms 64 bytes from 192.168.2.1: icmp_req=4 ttl=64 time=0.650 ms 64 bytes from 192.168.2.1: icmp_req=5 ttl=64 time=1.52 ms 64 bytes from 192.168.2.1: icmp_req=6 ttl=64 time=2.29 ms 64 bytes from 192.168.2.1: icmp_req=7 ttl=64 time=1.29 ms 64 bytes from 192.168.2.1: icmp_req=8 ttl=64 time=1.65 ms 64 bytes from 192.168.2.1: icmp_req=9 ttl=64 time=1.70 ms 64 bytes from 192.168.2.1: icmp_req=10 ttl=64 time=1.06 ms 64 bytes from 192.168.2.1: icmp_req=11 ttl=64 time=1.52 ms 64 bytes from 192.168.2.1: icmp_req=12 ttl=64 time=1.49 ms 64 bytes from 192.168.2.1: icmp_req=13 ttl=64 time=1.89 ms 64 bytes from 192.168.2.1: icmp_req=14 ttl=64 time=1.46 ms 64 bytes from 192.168.2.1: icmp_req=15 ttl=64 time=1.41 ms 64 bytes from 192.168.2.1: icmp_req=16 ttl=64 time=1.28 ms 64 bytes from 192.168.2.1: icmp_req=17
[Kernel-packages] [Bug 837076] Re: 8086:422b [Samsung NP900X3A-A01AU] Intel Centrino Ultimate-N 6300 AGN and packet loss using WiFi-N
** Changed in: linux (Ubuntu Trusty) Status: Incomplete = Confirmed -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/837076 Title: 8086:422b [Samsung NP900X3A-A01AU] Intel Centrino Ultimate-N 6300 AGN and packet loss using WiFi-N Status in The Linux Kernel: New Status in “linux” package in Ubuntu: Confirmed Status in “linux” source package in Saucy: Confirmed Status in “linux” source package in Trusty: Confirmed Bug description: I have recently swapped the internal WiFi adapter with an Ultimate-N 6300 and I'm seeing a lot of packet loss. Some additional info is as follows: wlan1 IEEE 802.11abgn ESSID:star-local Mode:Managed Frequency:2.412 GHz Access Point: 00:22:75:29:EC:61 Bit Rate=121.5 Mb/s Tx-Power=15 dBm Retry long limit:7 RTS thr:off Fragment thr:off Power Management:off Link Quality=49/70 Signal level=-61 dBm Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0 Tx excessive retries:205 Invalid misc:5 Missed beacon:0 $ ping -c 20 192.168.2.1 PING 192.168.2.1 (192.168.2.1) 56(84) bytes of data. 64 bytes from 192.168.2.1: icmp_req=1 ttl=64 time=3.83 ms 64 bytes from 192.168.2.1: icmp_req=2 ttl=64 time=2.56 ms 64 bytes from 192.168.2.1: icmp_req=3 ttl=64 time=2.59 ms 64 bytes from 192.168.2.1: icmp_req=4 ttl=64 time=2.57 ms 64 bytes from 192.168.2.1: icmp_req=5 ttl=64 time=3.23 ms 64 bytes from 192.168.2.1: icmp_req=6 ttl=64 time=3.13 ms 64 bytes from 192.168.2.1: icmp_req=7 ttl=64 time=4.04 ms 64 bytes from 192.168.2.1: icmp_req=11 ttl=64 time=3.89 ms 64 bytes from 192.168.2.1: icmp_req=12 ttl=64 time=3.80 ms 64 bytes from 192.168.2.1: icmp_req=13 ttl=64 time=82.4 ms 64 bytes from 192.168.2.1: icmp_req=14 ttl=64 time=105 ms 64 bytes from 192.168.2.1: icmp_req=15 ttl=64 time=2.57 ms 64 bytes from 192.168.2.1: icmp_req=16 ttl=64 time=2.97 ms 64 bytes from 192.168.2.1: icmp_req=17 ttl=64 time=2.57 ms 64 bytes from 192.168.2.1: icmp_req=18 ttl=64 time=2.57 ms 64 bytes from 192.168.2.1: icmp_req=19 ttl=64 time=3.94 ms 64 bytes from 192.168.2.1: icmp_req=20 ttl=64 time=3.51 ms --- 192.168.2.1 ping statistics --- 20 packets transmitted, 17 received, 15% packet loss, time 19028ms rtt min/avg/max/mdev = 2.567/13.879/105.633/29.547 ms https://bugs.launchpad.net/ubuntu/+source/linux/+bug/837076/+attachment/3929375/+files/log WORKAROUND: Remove and reload the module with 11n_disable=1. wlan1 IEEE 802.11abg ESSID:star-local Mode:Managed Frequency:2.412 GHz Access Point: 00:22:75:29:EC:61 Bit Rate=54 Mb/s Tx-Power=15 dBm Retry long limit:7 RTS thr:off Fragment thr:off Power Management:off Link Quality=49/70 Signal level=-61 dBm Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0 Tx excessive retries:0 Invalid misc:32 Missed beacon:0 $ ping -c 20 192.168.2.1 PING 192.168.2.1 (192.168.2.1) 56(84) bytes of data. 64 bytes from 192.168.2.1: icmp_req=1 ttl=64 time=1.82 ms 64 bytes from 192.168.2.1: icmp_req=2 ttl=64 time=1.17 ms 64 bytes from 192.168.2.1: icmp_req=3 ttl=64 time=1.80 ms 64 bytes from 192.168.2.1: icmp_req=4 ttl=64 time=0.650 ms 64 bytes from 192.168.2.1: icmp_req=5 ttl=64 time=1.52 ms 64 bytes from 192.168.2.1: icmp_req=6 ttl=64 time=2.29 ms 64 bytes from 192.168.2.1: icmp_req=7 ttl=64 time=1.29 ms 64 bytes from 192.168.2.1: icmp_req=8 ttl=64 time=1.65 ms 64 bytes from 192.168.2.1: icmp_req=9 ttl=64 time=1.70 ms 64 bytes from 192.168.2.1: icmp_req=10 ttl=64 time=1.06 ms 64 bytes from 192.168.2.1: icmp_req=11 ttl=64 time=1.52 ms 64 bytes from 192.168.2.1: icmp_req=12 ttl=64 time=1.49 ms 64 bytes from 192.168.2.1: icmp_req=13 ttl=64 time=1.89 ms 64 bytes from 192.168.2.1: icmp_req=14 ttl=64 time=1.46 ms 64 bytes from 192.168.2.1: icmp_req=15 ttl=64 time=1.41 ms 64 bytes from 192.168.2.1: icmp_req=16 ttl=64 time=1.28 ms 64 bytes from 192.168.2.1: icmp_req=17 ttl=64 time=1.40 ms 64 bytes from 192.168.2.1: icmp_req=18 ttl=64 time=0.946 ms 64 bytes from 192.168.2.1: icmp_req=19 ttl=64 time=1.32 ms 64 bytes from 192.168.2.1: icmp_req=20 ttl=64 time=1.32 ms --- 192.168.2.1 ping statistics --- 20 packets transmitted, 20 received, 0% packet loss, time 19026ms rtt min/avg/max/mdev = 0.650/1.453/2.291/0.356 ms ProblemType: Bug DistroRelease: Ubuntu 11.10 Package: linux-image-3.0.0-9-generic 3.0.0-9.14 ProcVersionSignature: Ubuntu 3.0.0-9.14-generic 3.0.3 Uname: Linux 3.0.0-9-generic x86_64 AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24. Architecture: amd64 ArecordDevices: List of CAPTURE Hardware Devices card 0: PCH [HDA Intel PCH], device 0: ALC269VB Analog [ALC269VB Analog] Subdevices: 1/1 Subdevice #0:
[Kernel-packages] [Bug 837076] Re: 8086:422b [Samsung NP900X3A-A01AU] Intel Centrino Ultimate-N 6300 AGN and packet loss using WiFi-N
Why was this marked incomplete ? I can definitely confirm it exists in trusty, having the same results as Loeung -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/837076 Title: 8086:422b [Samsung NP900X3A-A01AU] Intel Centrino Ultimate-N 6300 AGN and packet loss using WiFi-N Status in The Linux Kernel: New Status in “linux” package in Ubuntu: Confirmed Status in “linux” source package in Saucy: Confirmed Status in “linux” source package in Trusty: Confirmed Bug description: I have recently swapped the internal WiFi adapter with an Ultimate-N 6300 and I'm seeing a lot of packet loss. Some additional info is as follows: wlan1 IEEE 802.11abgn ESSID:star-local Mode:Managed Frequency:2.412 GHz Access Point: 00:22:75:29:EC:61 Bit Rate=121.5 Mb/s Tx-Power=15 dBm Retry long limit:7 RTS thr:off Fragment thr:off Power Management:off Link Quality=49/70 Signal level=-61 dBm Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0 Tx excessive retries:205 Invalid misc:5 Missed beacon:0 $ ping -c 20 192.168.2.1 PING 192.168.2.1 (192.168.2.1) 56(84) bytes of data. 64 bytes from 192.168.2.1: icmp_req=1 ttl=64 time=3.83 ms 64 bytes from 192.168.2.1: icmp_req=2 ttl=64 time=2.56 ms 64 bytes from 192.168.2.1: icmp_req=3 ttl=64 time=2.59 ms 64 bytes from 192.168.2.1: icmp_req=4 ttl=64 time=2.57 ms 64 bytes from 192.168.2.1: icmp_req=5 ttl=64 time=3.23 ms 64 bytes from 192.168.2.1: icmp_req=6 ttl=64 time=3.13 ms 64 bytes from 192.168.2.1: icmp_req=7 ttl=64 time=4.04 ms 64 bytes from 192.168.2.1: icmp_req=11 ttl=64 time=3.89 ms 64 bytes from 192.168.2.1: icmp_req=12 ttl=64 time=3.80 ms 64 bytes from 192.168.2.1: icmp_req=13 ttl=64 time=82.4 ms 64 bytes from 192.168.2.1: icmp_req=14 ttl=64 time=105 ms 64 bytes from 192.168.2.1: icmp_req=15 ttl=64 time=2.57 ms 64 bytes from 192.168.2.1: icmp_req=16 ttl=64 time=2.97 ms 64 bytes from 192.168.2.1: icmp_req=17 ttl=64 time=2.57 ms 64 bytes from 192.168.2.1: icmp_req=18 ttl=64 time=2.57 ms 64 bytes from 192.168.2.1: icmp_req=19 ttl=64 time=3.94 ms 64 bytes from 192.168.2.1: icmp_req=20 ttl=64 time=3.51 ms --- 192.168.2.1 ping statistics --- 20 packets transmitted, 17 received, 15% packet loss, time 19028ms rtt min/avg/max/mdev = 2.567/13.879/105.633/29.547 ms https://bugs.launchpad.net/ubuntu/+source/linux/+bug/837076/+attachment/3929375/+files/log WORKAROUND: Remove and reload the module with 11n_disable=1. wlan1 IEEE 802.11abg ESSID:star-local Mode:Managed Frequency:2.412 GHz Access Point: 00:22:75:29:EC:61 Bit Rate=54 Mb/s Tx-Power=15 dBm Retry long limit:7 RTS thr:off Fragment thr:off Power Management:off Link Quality=49/70 Signal level=-61 dBm Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0 Tx excessive retries:0 Invalid misc:32 Missed beacon:0 $ ping -c 20 192.168.2.1 PING 192.168.2.1 (192.168.2.1) 56(84) bytes of data. 64 bytes from 192.168.2.1: icmp_req=1 ttl=64 time=1.82 ms 64 bytes from 192.168.2.1: icmp_req=2 ttl=64 time=1.17 ms 64 bytes from 192.168.2.1: icmp_req=3 ttl=64 time=1.80 ms 64 bytes from 192.168.2.1: icmp_req=4 ttl=64 time=0.650 ms 64 bytes from 192.168.2.1: icmp_req=5 ttl=64 time=1.52 ms 64 bytes from 192.168.2.1: icmp_req=6 ttl=64 time=2.29 ms 64 bytes from 192.168.2.1: icmp_req=7 ttl=64 time=1.29 ms 64 bytes from 192.168.2.1: icmp_req=8 ttl=64 time=1.65 ms 64 bytes from 192.168.2.1: icmp_req=9 ttl=64 time=1.70 ms 64 bytes from 192.168.2.1: icmp_req=10 ttl=64 time=1.06 ms 64 bytes from 192.168.2.1: icmp_req=11 ttl=64 time=1.52 ms 64 bytes from 192.168.2.1: icmp_req=12 ttl=64 time=1.49 ms 64 bytes from 192.168.2.1: icmp_req=13 ttl=64 time=1.89 ms 64 bytes from 192.168.2.1: icmp_req=14 ttl=64 time=1.46 ms 64 bytes from 192.168.2.1: icmp_req=15 ttl=64 time=1.41 ms 64 bytes from 192.168.2.1: icmp_req=16 ttl=64 time=1.28 ms 64 bytes from 192.168.2.1: icmp_req=17 ttl=64 time=1.40 ms 64 bytes from 192.168.2.1: icmp_req=18 ttl=64 time=0.946 ms 64 bytes from 192.168.2.1: icmp_req=19 ttl=64 time=1.32 ms 64 bytes from 192.168.2.1: icmp_req=20 ttl=64 time=1.32 ms --- 192.168.2.1 ping statistics --- 20 packets transmitted, 20 received, 0% packet loss, time 19026ms rtt min/avg/max/mdev = 0.650/1.453/2.291/0.356 ms ProblemType: Bug DistroRelease: Ubuntu 11.10 Package: linux-image-3.0.0-9-generic 3.0.0-9.14 ProcVersionSignature: Ubuntu 3.0.0-9.14-generic 3.0.3 Uname: Linux 3.0.0-9-generic x86_64 AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24. Architecture: amd64 ArecordDevices: List of CAPTURE Hardware Devices card 0: PCH [HDA Intel PCH], device 0: ALC269VB Analog [ALC269VB Analog]
[Kernel-packages] [Bug 837076] Re: 8086:422b [Samsung NP900X3A-A01AU] Intel Centrino Ultimate-N 6300 AGN and packet loss using WiFi-N
Hi,
I just upgraded to Trusty earlier on today so am now running with Linux
3.12. Still seeing the same issues:
| [hloeung@darkon tmp]$ cat /etc/lsb-release
| DISTRIB_ID=Ubuntu
| DISTRIB_RELEASE=14.04
| DISTRIB_CODENAME=trusty
| DISTRIB_DESCRIPTION=Ubuntu Trusty Tahr (development branch)
| [hloeung@darkon tmp]$ uname -a
| Linux darkon 3.12.0-7-generic #15-Ubuntu SMP Sun Dec 8 23:39:27 UTC 2013
x86_64 x86_64 x86_64 GNU/Linux
|
| [hloeung@darkon tmp]$ ping 203.12.160.35 -c 100 | grep -v
'ttl=[[:digit:]]\+[[:space:]]time=[[:digit:]]\{2\}\.'
| PING 203.12.160.35 (203.12.160.35) 56(84) bytes of data.
| 64 bytes from 203.12.160.35: icmp_seq=2 ttl=227 time=420 ms
| 64 bytes from 203.12.160.35: icmp_seq=6 ttl=227 time=133 ms
| 64 bytes from 203.12.160.35: icmp_seq=53 ttl=227 time=125 ms
| 64 bytes from 203.12.160.35: icmp_seq=68 ttl=227 time=109 ms
| 64 bytes from 203.12.160.35: icmp_seq=88 ttl=227 time=1515 ms
| 64 bytes from 203.12.160.35: icmp_seq=89 ttl=227 time=513 ms
| 64 bytes from 203.12.160.35: icmp_seq=99 ttl=227 time=2656 ms
| 64 bytes from 203.12.160.35: icmp_seq=100 ttl=227 time=1714 ms
|
| --- 203.12.160.35 ping statistics ---
| 100 packets transmitted, 91 received, 9% packet loss, time 99210ms
| rtt min/avg/max/mdev = 16.272/99.272/2656.825/362.102 ms, pipe 2
http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.13-rc4-trusty/ seems
incomplete and only has dpkg for headers so I went with
http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.13-rc3-trusty/. Again,
doesn't appear to be resolved:
| [hloeung@darkon tmp]$ uname -a
| Linux darkon 3.13.0-031300rc3-generic #201312061335 SMP Fri Dec 6 18:37:23
UTC 2013 x86_64 x86_64 x86_64 GNU/Linux
|
| [hloeung@darkon tmp]$ ping 203.12.160.35 -c 100 | grep -v
'ttl=[[:digit:]]\+[[:space:]]time=[[:digit:]]\{2\}\.'
| PING 203.12.160.35 (203.12.160.35) 56(84) bytes of data.
| 64 bytes from 203.12.160.35: icmp_seq=1 ttl=227 time=744 ms
| 64 bytes from 203.12.160.35: icmp_seq=5 ttl=227 time=680 ms
| 64 bytes from 203.12.160.35: icmp_seq=11 ttl=227 time=1160 ms
| 64 bytes from 203.12.160.35: icmp_seq=12 ttl=227 time=528 ms
| 64 bytes from 203.12.160.35: icmp_seq=31 ttl=227 time=134 ms
| 64 bytes from 203.12.160.35: icmp_seq=32 ttl=227 time=594 ms
| 64 bytes from 203.12.160.35: icmp_seq=33 ttl=227 time=144 ms
| 64 bytes from 203.12.160.35: icmp_seq=34 ttl=227 time=374 ms
| 64 bytes from 203.12.160.35: icmp_seq=46 ttl=227 time=1276 ms
| 64 bytes from 203.12.160.35: icmp_seq=47 ttl=227 time=296 ms
| 64 bytes from 203.12.160.35: icmp_seq=48 ttl=227 time=411 ms
| 64 bytes from 203.12.160.35: icmp_seq=94 ttl=227 time=182 ms
|
| --- 203.12.160.35 ping statistics ---
| 100 packets transmitted, 99 received, 1% packet loss, time 99146ms
| rtt min/avg/max/mdev = 17.350/86.519/1276.172/210.985 ms, pipe 2
Regards,
Haw
** Changed in: linux (Ubuntu)
Status: Incomplete = Confirmed
** Tags removed: kernel-bug-exists-upstream-v3.11.10.1-saucy
needs-upstream-testing
** Tags added: kernel-bug-exists-upstream-vv3.13-rc3-trusty trusty
** Tags added: kernel-bug-exists-upstream
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/837076
Title:
8086:422b [Samsung NP900X3A-A01AU] Intel Centrino Ultimate-N 6300 AGN
and packet loss using WiFi-N
Status in The Linux Kernel:
New
Status in “linux” package in Ubuntu:
Confirmed
Status in “linux” source package in Saucy:
Confirmed
Status in “linux” source package in Trusty:
Confirmed
Bug description:
I have recently swapped the internal WiFi adapter with an Ultimate-N 6300 and
I'm seeing a lot of packet loss. Some additional info is as follows:
wlan1 IEEE 802.11abgn ESSID:star-local
Mode:Managed Frequency:2.412 GHz Access Point: 00:22:75:29:EC:61
Bit Rate=121.5 Mb/s Tx-Power=15 dBm
Retry long limit:7 RTS thr:off Fragment thr:off
Power Management:off
Link Quality=49/70 Signal level=-61 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:205 Invalid misc:5 Missed beacon:0
$ ping -c 20 192.168.2.1
PING 192.168.2.1 (192.168.2.1) 56(84) bytes of data.
64 bytes from 192.168.2.1: icmp_req=1 ttl=64 time=3.83 ms
64 bytes from 192.168.2.1: icmp_req=2 ttl=64 time=2.56 ms
64 bytes from 192.168.2.1: icmp_req=3 ttl=64 time=2.59 ms
64 bytes from 192.168.2.1: icmp_req=4 ttl=64 time=2.57 ms
64 bytes from 192.168.2.1: icmp_req=5 ttl=64 time=3.23 ms
64 bytes from 192.168.2.1: icmp_req=6 ttl=64 time=3.13 ms
64 bytes from 192.168.2.1: icmp_req=7 ttl=64 time=4.04 ms
64 bytes from 192.168.2.1: icmp_req=11 ttl=64 time=3.89 ms
64 bytes from 192.168.2.1: icmp_req=12 ttl=64 time=3.80 ms
64 bytes from 192.168.2.1: icmp_req=13 ttl=64 time=82.4 ms
64 bytes from 192.168.2.1: icmp_req=14 ttl=64 time=105 ms
64 bytes from 192.168.2.1: icmp_req=15 ttl=64 time=2.57 ms
64 bytes from
[Kernel-packages] [Bug 837076] Re: 8086:422b [Samsung NP900X3A-A01AU] Intel Centrino Ultimate-N 6300 AGN and packet loss using WiFi-N
** Also affects: linux (Ubuntu Trusty) Importance: Low Status: Confirmed -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/837076 Title: 8086:422b [Samsung NP900X3A-A01AU] Intel Centrino Ultimate-N 6300 AGN and packet loss using WiFi-N Status in The Linux Kernel: New Status in “linux” package in Ubuntu: Confirmed Status in “linux” source package in Saucy: Confirmed Status in “linux” source package in Trusty: Confirmed Bug description: I have recently swapped the internal WiFi adapter with an Ultimate-N 6300 and I'm seeing a lot of packet loss. Some additional info is as follows: wlan1 IEEE 802.11abgn ESSID:star-local Mode:Managed Frequency:2.412 GHz Access Point: 00:22:75:29:EC:61 Bit Rate=121.5 Mb/s Tx-Power=15 dBm Retry long limit:7 RTS thr:off Fragment thr:off Power Management:off Link Quality=49/70 Signal level=-61 dBm Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0 Tx excessive retries:205 Invalid misc:5 Missed beacon:0 $ ping -c 20 192.168.2.1 PING 192.168.2.1 (192.168.2.1) 56(84) bytes of data. 64 bytes from 192.168.2.1: icmp_req=1 ttl=64 time=3.83 ms 64 bytes from 192.168.2.1: icmp_req=2 ttl=64 time=2.56 ms 64 bytes from 192.168.2.1: icmp_req=3 ttl=64 time=2.59 ms 64 bytes from 192.168.2.1: icmp_req=4 ttl=64 time=2.57 ms 64 bytes from 192.168.2.1: icmp_req=5 ttl=64 time=3.23 ms 64 bytes from 192.168.2.1: icmp_req=6 ttl=64 time=3.13 ms 64 bytes from 192.168.2.1: icmp_req=7 ttl=64 time=4.04 ms 64 bytes from 192.168.2.1: icmp_req=11 ttl=64 time=3.89 ms 64 bytes from 192.168.2.1: icmp_req=12 ttl=64 time=3.80 ms 64 bytes from 192.168.2.1: icmp_req=13 ttl=64 time=82.4 ms 64 bytes from 192.168.2.1: icmp_req=14 ttl=64 time=105 ms 64 bytes from 192.168.2.1: icmp_req=15 ttl=64 time=2.57 ms 64 bytes from 192.168.2.1: icmp_req=16 ttl=64 time=2.97 ms 64 bytes from 192.168.2.1: icmp_req=17 ttl=64 time=2.57 ms 64 bytes from 192.168.2.1: icmp_req=18 ttl=64 time=2.57 ms 64 bytes from 192.168.2.1: icmp_req=19 ttl=64 time=3.94 ms 64 bytes from 192.168.2.1: icmp_req=20 ttl=64 time=3.51 ms --- 192.168.2.1 ping statistics --- 20 packets transmitted, 17 received, 15% packet loss, time 19028ms rtt min/avg/max/mdev = 2.567/13.879/105.633/29.547 ms https://bugs.launchpad.net/ubuntu/+source/linux/+bug/837076/+attachment/3929375/+files/log WORKAROUND: Remove and reload the module with 11n_disable=1. wlan1 IEEE 802.11abg ESSID:star-local Mode:Managed Frequency:2.412 GHz Access Point: 00:22:75:29:EC:61 Bit Rate=54 Mb/s Tx-Power=15 dBm Retry long limit:7 RTS thr:off Fragment thr:off Power Management:off Link Quality=49/70 Signal level=-61 dBm Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0 Tx excessive retries:0 Invalid misc:32 Missed beacon:0 $ ping -c 20 192.168.2.1 PING 192.168.2.1 (192.168.2.1) 56(84) bytes of data. 64 bytes from 192.168.2.1: icmp_req=1 ttl=64 time=1.82 ms 64 bytes from 192.168.2.1: icmp_req=2 ttl=64 time=1.17 ms 64 bytes from 192.168.2.1: icmp_req=3 ttl=64 time=1.80 ms 64 bytes from 192.168.2.1: icmp_req=4 ttl=64 time=0.650 ms 64 bytes from 192.168.2.1: icmp_req=5 ttl=64 time=1.52 ms 64 bytes from 192.168.2.1: icmp_req=6 ttl=64 time=2.29 ms 64 bytes from 192.168.2.1: icmp_req=7 ttl=64 time=1.29 ms 64 bytes from 192.168.2.1: icmp_req=8 ttl=64 time=1.65 ms 64 bytes from 192.168.2.1: icmp_req=9 ttl=64 time=1.70 ms 64 bytes from 192.168.2.1: icmp_req=10 ttl=64 time=1.06 ms 64 bytes from 192.168.2.1: icmp_req=11 ttl=64 time=1.52 ms 64 bytes from 192.168.2.1: icmp_req=12 ttl=64 time=1.49 ms 64 bytes from 192.168.2.1: icmp_req=13 ttl=64 time=1.89 ms 64 bytes from 192.168.2.1: icmp_req=14 ttl=64 time=1.46 ms 64 bytes from 192.168.2.1: icmp_req=15 ttl=64 time=1.41 ms 64 bytes from 192.168.2.1: icmp_req=16 ttl=64 time=1.28 ms 64 bytes from 192.168.2.1: icmp_req=17 ttl=64 time=1.40 ms 64 bytes from 192.168.2.1: icmp_req=18 ttl=64 time=0.946 ms 64 bytes from 192.168.2.1: icmp_req=19 ttl=64 time=1.32 ms 64 bytes from 192.168.2.1: icmp_req=20 ttl=64 time=1.32 ms --- 192.168.2.1 ping statistics --- 20 packets transmitted, 20 received, 0% packet loss, time 19026ms rtt min/avg/max/mdev = 0.650/1.453/2.291/0.356 ms ProblemType: Bug DistroRelease: Ubuntu 11.10 Package: linux-image-3.0.0-9-generic 3.0.0-9.14 ProcVersionSignature: Ubuntu 3.0.0-9.14-generic 3.0.3 Uname: Linux 3.0.0-9-generic x86_64 AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24. Architecture: amd64 ArecordDevices: List of CAPTURE Hardware Devices card 0: PCH [HDA Intel PCH], device 0: ALC269VB Analog [ALC269VB Analog] Subdevices: 1/1
[Kernel-packages] [Bug 837076] Re: 8086:422b [Samsung NP900X3A-A01AU] Intel Centrino Ultimate-N 6300 AGN and packet loss using WiFi-N
** Changed in: linux (Ubuntu Trusty) Importance: Low = High -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/837076 Title: 8086:422b [Samsung NP900X3A-A01AU] Intel Centrino Ultimate-N 6300 AGN and packet loss using WiFi-N Status in The Linux Kernel: New Status in “linux” package in Ubuntu: Confirmed Status in “linux” source package in Saucy: Confirmed Status in “linux” source package in Trusty: Confirmed Bug description: I have recently swapped the internal WiFi adapter with an Ultimate-N 6300 and I'm seeing a lot of packet loss. Some additional info is as follows: wlan1 IEEE 802.11abgn ESSID:star-local Mode:Managed Frequency:2.412 GHz Access Point: 00:22:75:29:EC:61 Bit Rate=121.5 Mb/s Tx-Power=15 dBm Retry long limit:7 RTS thr:off Fragment thr:off Power Management:off Link Quality=49/70 Signal level=-61 dBm Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0 Tx excessive retries:205 Invalid misc:5 Missed beacon:0 $ ping -c 20 192.168.2.1 PING 192.168.2.1 (192.168.2.1) 56(84) bytes of data. 64 bytes from 192.168.2.1: icmp_req=1 ttl=64 time=3.83 ms 64 bytes from 192.168.2.1: icmp_req=2 ttl=64 time=2.56 ms 64 bytes from 192.168.2.1: icmp_req=3 ttl=64 time=2.59 ms 64 bytes from 192.168.2.1: icmp_req=4 ttl=64 time=2.57 ms 64 bytes from 192.168.2.1: icmp_req=5 ttl=64 time=3.23 ms 64 bytes from 192.168.2.1: icmp_req=6 ttl=64 time=3.13 ms 64 bytes from 192.168.2.1: icmp_req=7 ttl=64 time=4.04 ms 64 bytes from 192.168.2.1: icmp_req=11 ttl=64 time=3.89 ms 64 bytes from 192.168.2.1: icmp_req=12 ttl=64 time=3.80 ms 64 bytes from 192.168.2.1: icmp_req=13 ttl=64 time=82.4 ms 64 bytes from 192.168.2.1: icmp_req=14 ttl=64 time=105 ms 64 bytes from 192.168.2.1: icmp_req=15 ttl=64 time=2.57 ms 64 bytes from 192.168.2.1: icmp_req=16 ttl=64 time=2.97 ms 64 bytes from 192.168.2.1: icmp_req=17 ttl=64 time=2.57 ms 64 bytes from 192.168.2.1: icmp_req=18 ttl=64 time=2.57 ms 64 bytes from 192.168.2.1: icmp_req=19 ttl=64 time=3.94 ms 64 bytes from 192.168.2.1: icmp_req=20 ttl=64 time=3.51 ms --- 192.168.2.1 ping statistics --- 20 packets transmitted, 17 received, 15% packet loss, time 19028ms rtt min/avg/max/mdev = 2.567/13.879/105.633/29.547 ms https://bugs.launchpad.net/ubuntu/+source/linux/+bug/837076/+attachment/3929375/+files/log WORKAROUND: Remove and reload the module with 11n_disable=1. wlan1 IEEE 802.11abg ESSID:star-local Mode:Managed Frequency:2.412 GHz Access Point: 00:22:75:29:EC:61 Bit Rate=54 Mb/s Tx-Power=15 dBm Retry long limit:7 RTS thr:off Fragment thr:off Power Management:off Link Quality=49/70 Signal level=-61 dBm Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0 Tx excessive retries:0 Invalid misc:32 Missed beacon:0 $ ping -c 20 192.168.2.1 PING 192.168.2.1 (192.168.2.1) 56(84) bytes of data. 64 bytes from 192.168.2.1: icmp_req=1 ttl=64 time=1.82 ms 64 bytes from 192.168.2.1: icmp_req=2 ttl=64 time=1.17 ms 64 bytes from 192.168.2.1: icmp_req=3 ttl=64 time=1.80 ms 64 bytes from 192.168.2.1: icmp_req=4 ttl=64 time=0.650 ms 64 bytes from 192.168.2.1: icmp_req=5 ttl=64 time=1.52 ms 64 bytes from 192.168.2.1: icmp_req=6 ttl=64 time=2.29 ms 64 bytes from 192.168.2.1: icmp_req=7 ttl=64 time=1.29 ms 64 bytes from 192.168.2.1: icmp_req=8 ttl=64 time=1.65 ms 64 bytes from 192.168.2.1: icmp_req=9 ttl=64 time=1.70 ms 64 bytes from 192.168.2.1: icmp_req=10 ttl=64 time=1.06 ms 64 bytes from 192.168.2.1: icmp_req=11 ttl=64 time=1.52 ms 64 bytes from 192.168.2.1: icmp_req=12 ttl=64 time=1.49 ms 64 bytes from 192.168.2.1: icmp_req=13 ttl=64 time=1.89 ms 64 bytes from 192.168.2.1: icmp_req=14 ttl=64 time=1.46 ms 64 bytes from 192.168.2.1: icmp_req=15 ttl=64 time=1.41 ms 64 bytes from 192.168.2.1: icmp_req=16 ttl=64 time=1.28 ms 64 bytes from 192.168.2.1: icmp_req=17 ttl=64 time=1.40 ms 64 bytes from 192.168.2.1: icmp_req=18 ttl=64 time=0.946 ms 64 bytes from 192.168.2.1: icmp_req=19 ttl=64 time=1.32 ms 64 bytes from 192.168.2.1: icmp_req=20 ttl=64 time=1.32 ms --- 192.168.2.1 ping statistics --- 20 packets transmitted, 20 received, 0% packet loss, time 19026ms rtt min/avg/max/mdev = 0.650/1.453/2.291/0.356 ms ProblemType: Bug DistroRelease: Ubuntu 11.10 Package: linux-image-3.0.0-9-generic 3.0.0-9.14 ProcVersionSignature: Ubuntu 3.0.0-9.14-generic 3.0.3 Uname: Linux 3.0.0-9-generic x86_64 AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24. Architecture: amd64 ArecordDevices: List of CAPTURE Hardware Devices card 0: PCH [HDA Intel PCH], device 0: ALC269VB Analog [ALC269VB Analog] Subdevices: 1/1 Subdevice #0: subdevice
[Kernel-packages] [Bug 837076] Re: 8086:422b [Samsung NP900X3A-A01AU] Intel Centrino Ultimate-N 6300 AGN and packet loss using WiFi-N
** Tags removed: kernel-bug-exists-upstream-vv3.13-rc3-trusty ** Tags added: kernel-bug-exists-upstream-vv3.13-rc3 ** Tags removed: kernel-bug-exists-upstream-vv3.13-rc3 ** Tags added: kernel-bug-exists-upstream-v3.13-rc3 -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/837076 Title: 8086:422b [Samsung NP900X3A-A01AU] Intel Centrino Ultimate-N 6300 AGN and packet loss using WiFi-N Status in The Linux Kernel: New Status in “linux” package in Ubuntu: Confirmed Status in “linux” source package in Saucy: Confirmed Status in “linux” source package in Trusty: Confirmed Bug description: I have recently swapped the internal WiFi adapter with an Ultimate-N 6300 and I'm seeing a lot of packet loss. Some additional info is as follows: wlan1 IEEE 802.11abgn ESSID:star-local Mode:Managed Frequency:2.412 GHz Access Point: 00:22:75:29:EC:61 Bit Rate=121.5 Mb/s Tx-Power=15 dBm Retry long limit:7 RTS thr:off Fragment thr:off Power Management:off Link Quality=49/70 Signal level=-61 dBm Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0 Tx excessive retries:205 Invalid misc:5 Missed beacon:0 $ ping -c 20 192.168.2.1 PING 192.168.2.1 (192.168.2.1) 56(84) bytes of data. 64 bytes from 192.168.2.1: icmp_req=1 ttl=64 time=3.83 ms 64 bytes from 192.168.2.1: icmp_req=2 ttl=64 time=2.56 ms 64 bytes from 192.168.2.1: icmp_req=3 ttl=64 time=2.59 ms 64 bytes from 192.168.2.1: icmp_req=4 ttl=64 time=2.57 ms 64 bytes from 192.168.2.1: icmp_req=5 ttl=64 time=3.23 ms 64 bytes from 192.168.2.1: icmp_req=6 ttl=64 time=3.13 ms 64 bytes from 192.168.2.1: icmp_req=7 ttl=64 time=4.04 ms 64 bytes from 192.168.2.1: icmp_req=11 ttl=64 time=3.89 ms 64 bytes from 192.168.2.1: icmp_req=12 ttl=64 time=3.80 ms 64 bytes from 192.168.2.1: icmp_req=13 ttl=64 time=82.4 ms 64 bytes from 192.168.2.1: icmp_req=14 ttl=64 time=105 ms 64 bytes from 192.168.2.1: icmp_req=15 ttl=64 time=2.57 ms 64 bytes from 192.168.2.1: icmp_req=16 ttl=64 time=2.97 ms 64 bytes from 192.168.2.1: icmp_req=17 ttl=64 time=2.57 ms 64 bytes from 192.168.2.1: icmp_req=18 ttl=64 time=2.57 ms 64 bytes from 192.168.2.1: icmp_req=19 ttl=64 time=3.94 ms 64 bytes from 192.168.2.1: icmp_req=20 ttl=64 time=3.51 ms --- 192.168.2.1 ping statistics --- 20 packets transmitted, 17 received, 15% packet loss, time 19028ms rtt min/avg/max/mdev = 2.567/13.879/105.633/29.547 ms https://bugs.launchpad.net/ubuntu/+source/linux/+bug/837076/+attachment/3929375/+files/log WORKAROUND: Remove and reload the module with 11n_disable=1. wlan1 IEEE 802.11abg ESSID:star-local Mode:Managed Frequency:2.412 GHz Access Point: 00:22:75:29:EC:61 Bit Rate=54 Mb/s Tx-Power=15 dBm Retry long limit:7 RTS thr:off Fragment thr:off Power Management:off Link Quality=49/70 Signal level=-61 dBm Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0 Tx excessive retries:0 Invalid misc:32 Missed beacon:0 $ ping -c 20 192.168.2.1 PING 192.168.2.1 (192.168.2.1) 56(84) bytes of data. 64 bytes from 192.168.2.1: icmp_req=1 ttl=64 time=1.82 ms 64 bytes from 192.168.2.1: icmp_req=2 ttl=64 time=1.17 ms 64 bytes from 192.168.2.1: icmp_req=3 ttl=64 time=1.80 ms 64 bytes from 192.168.2.1: icmp_req=4 ttl=64 time=0.650 ms 64 bytes from 192.168.2.1: icmp_req=5 ttl=64 time=1.52 ms 64 bytes from 192.168.2.1: icmp_req=6 ttl=64 time=2.29 ms 64 bytes from 192.168.2.1: icmp_req=7 ttl=64 time=1.29 ms 64 bytes from 192.168.2.1: icmp_req=8 ttl=64 time=1.65 ms 64 bytes from 192.168.2.1: icmp_req=9 ttl=64 time=1.70 ms 64 bytes from 192.168.2.1: icmp_req=10 ttl=64 time=1.06 ms 64 bytes from 192.168.2.1: icmp_req=11 ttl=64 time=1.52 ms 64 bytes from 192.168.2.1: icmp_req=12 ttl=64 time=1.49 ms 64 bytes from 192.168.2.1: icmp_req=13 ttl=64 time=1.89 ms 64 bytes from 192.168.2.1: icmp_req=14 ttl=64 time=1.46 ms 64 bytes from 192.168.2.1: icmp_req=15 ttl=64 time=1.41 ms 64 bytes from 192.168.2.1: icmp_req=16 ttl=64 time=1.28 ms 64 bytes from 192.168.2.1: icmp_req=17 ttl=64 time=1.40 ms 64 bytes from 192.168.2.1: icmp_req=18 ttl=64 time=0.946 ms 64 bytes from 192.168.2.1: icmp_req=19 ttl=64 time=1.32 ms 64 bytes from 192.168.2.1: icmp_req=20 ttl=64 time=1.32 ms --- 192.168.2.1 ping statistics --- 20 packets transmitted, 20 received, 0% packet loss, time 19026ms rtt min/avg/max/mdev = 0.650/1.453/2.291/0.356 ms ProblemType: Bug DistroRelease: Ubuntu 11.10 Package: linux-image-3.0.0-9-generic 3.0.0-9.14 ProcVersionSignature: Ubuntu 3.0.0-9.14-generic 3.0.3 Uname: Linux 3.0.0-9-generic x86_64 AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24. Architecture: amd64 ArecordDevices: List
[Kernel-packages] [Bug 837076] Re: 8086:422b [Samsung NP900X3A-A01AU] Intel Centrino Ultimate-N 6300 AGN and packet loss using WiFi-N
Haw Loeung, thank you for performing the requested tests. Could you please fill in the missing debug information following https://wiki.ubuntu.com/Kernel/LinuxWireless ? Marking Importance Low as per https://wiki.ubuntu.com/Bugs/Importance : Low: Bugs which affect functionality, but to a lesser extent than most bugs, examples are: Bugs that have easy work-arounds ** Changed in: linux (Ubuntu Trusty) Importance: High = Low ** Changed in: linux (Ubuntu Trusty) Status: Confirmed = Incomplete ** Changed in: linux (Ubuntu Saucy) Importance: High = Low -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/837076 Title: 8086:422b [Samsung NP900X3A-A01AU] Intel Centrino Ultimate-N 6300 AGN and packet loss using WiFi-N Status in The Linux Kernel: New Status in “linux” package in Ubuntu: Incomplete Status in “linux” source package in Saucy: Confirmed Status in “linux” source package in Trusty: Incomplete Bug description: I have recently swapped the internal WiFi adapter with an Ultimate-N 6300 and I'm seeing a lot of packet loss. Some additional info is as follows: wlan1 IEEE 802.11abgn ESSID:star-local Mode:Managed Frequency:2.412 GHz Access Point: 00:22:75:29:EC:61 Bit Rate=121.5 Mb/s Tx-Power=15 dBm Retry long limit:7 RTS thr:off Fragment thr:off Power Management:off Link Quality=49/70 Signal level=-61 dBm Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0 Tx excessive retries:205 Invalid misc:5 Missed beacon:0 $ ping -c 20 192.168.2.1 PING 192.168.2.1 (192.168.2.1) 56(84) bytes of data. 64 bytes from 192.168.2.1: icmp_req=1 ttl=64 time=3.83 ms 64 bytes from 192.168.2.1: icmp_req=2 ttl=64 time=2.56 ms 64 bytes from 192.168.2.1: icmp_req=3 ttl=64 time=2.59 ms 64 bytes from 192.168.2.1: icmp_req=4 ttl=64 time=2.57 ms 64 bytes from 192.168.2.1: icmp_req=5 ttl=64 time=3.23 ms 64 bytes from 192.168.2.1: icmp_req=6 ttl=64 time=3.13 ms 64 bytes from 192.168.2.1: icmp_req=7 ttl=64 time=4.04 ms 64 bytes from 192.168.2.1: icmp_req=11 ttl=64 time=3.89 ms 64 bytes from 192.168.2.1: icmp_req=12 ttl=64 time=3.80 ms 64 bytes from 192.168.2.1: icmp_req=13 ttl=64 time=82.4 ms 64 bytes from 192.168.2.1: icmp_req=14 ttl=64 time=105 ms 64 bytes from 192.168.2.1: icmp_req=15 ttl=64 time=2.57 ms 64 bytes from 192.168.2.1: icmp_req=16 ttl=64 time=2.97 ms 64 bytes from 192.168.2.1: icmp_req=17 ttl=64 time=2.57 ms 64 bytes from 192.168.2.1: icmp_req=18 ttl=64 time=2.57 ms 64 bytes from 192.168.2.1: icmp_req=19 ttl=64 time=3.94 ms 64 bytes from 192.168.2.1: icmp_req=20 ttl=64 time=3.51 ms --- 192.168.2.1 ping statistics --- 20 packets transmitted, 17 received, 15% packet loss, time 19028ms rtt min/avg/max/mdev = 2.567/13.879/105.633/29.547 ms https://bugs.launchpad.net/ubuntu/+source/linux/+bug/837076/+attachment/3929375/+files/log WORKAROUND: Remove and reload the module with 11n_disable=1. wlan1 IEEE 802.11abg ESSID:star-local Mode:Managed Frequency:2.412 GHz Access Point: 00:22:75:29:EC:61 Bit Rate=54 Mb/s Tx-Power=15 dBm Retry long limit:7 RTS thr:off Fragment thr:off Power Management:off Link Quality=49/70 Signal level=-61 dBm Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0 Tx excessive retries:0 Invalid misc:32 Missed beacon:0 $ ping -c 20 192.168.2.1 PING 192.168.2.1 (192.168.2.1) 56(84) bytes of data. 64 bytes from 192.168.2.1: icmp_req=1 ttl=64 time=1.82 ms 64 bytes from 192.168.2.1: icmp_req=2 ttl=64 time=1.17 ms 64 bytes from 192.168.2.1: icmp_req=3 ttl=64 time=1.80 ms 64 bytes from 192.168.2.1: icmp_req=4 ttl=64 time=0.650 ms 64 bytes from 192.168.2.1: icmp_req=5 ttl=64 time=1.52 ms 64 bytes from 192.168.2.1: icmp_req=6 ttl=64 time=2.29 ms 64 bytes from 192.168.2.1: icmp_req=7 ttl=64 time=1.29 ms 64 bytes from 192.168.2.1: icmp_req=8 ttl=64 time=1.65 ms 64 bytes from 192.168.2.1: icmp_req=9 ttl=64 time=1.70 ms 64 bytes from 192.168.2.1: icmp_req=10 ttl=64 time=1.06 ms 64 bytes from 192.168.2.1: icmp_req=11 ttl=64 time=1.52 ms 64 bytes from 192.168.2.1: icmp_req=12 ttl=64 time=1.49 ms 64 bytes from 192.168.2.1: icmp_req=13 ttl=64 time=1.89 ms 64 bytes from 192.168.2.1: icmp_req=14 ttl=64 time=1.46 ms 64 bytes from 192.168.2.1: icmp_req=15 ttl=64 time=1.41 ms 64 bytes from 192.168.2.1: icmp_req=16 ttl=64 time=1.28 ms 64 bytes from 192.168.2.1: icmp_req=17 ttl=64 time=1.40 ms 64 bytes from 192.168.2.1: icmp_req=18 ttl=64 time=0.946 ms 64 bytes from 192.168.2.1: icmp_req=19 ttl=64 time=1.32 ms 64 bytes from 192.168.2.1: icmp_req=20 ttl=64 time=1.32 ms --- 192.168.2.1 ping statistics --- 20 packets transmitted, 20 received, 0% packet loss, time 19026ms rtt
[Kernel-packages] [Bug 837076] Re: 8086:422b [Samsung NP900X3A-A01AU] Intel Centrino Ultimate-N 6300 AGN and packet loss using WiFi-N
Hi,
I've tested the latest upstream kernel and it seems the problem still
exists.
[hloeung@darkon tmp]$ uname -a
Linux darkon 3.11.10-03111001-generic #201312110635 SMP Wed Dec 11 11:35:43 UTC
2013 x86_64 x86_64 x86_64 GNU/Linux
(from http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.11.10.1-saucy/)
Without 11n_disable=1:
| [hloeung@darkon tmp]$ ping 203.12.160.35 -c 100 | grep -v
'ttl=[[:digit:]]\+[[:space:]]time=[[:digit:]]\{2\}\.'
| PING 203.12.160.35 (203.12.160.35) 56(84) bytes of data.
| 64 bytes from 203.12.160.35: icmp_seq=13 ttl=227 time=1492 ms
| 64 bytes from 203.12.160.35: icmp_seq=14 ttl=227 time=502 ms
| 64 bytes from 203.12.160.35: icmp_seq=18 ttl=227 time=1979 ms
| 64 bytes from 203.12.160.35: icmp_seq=19 ttl=227 time=1001 ms
| 64 bytes from 203.12.160.35: icmp_seq=20 ttl=227 time=1595 ms
| 64 bytes from 203.12.160.35: icmp_seq=21 ttl=227 time=636 ms
| 64 bytes from 203.12.160.35: icmp_seq=26 ttl=227 time=1661 ms
| 64 bytes from 203.12.160.35: icmp_seq=27 ttl=227 time=701 ms
| 64 bytes from 203.12.160.35: icmp_seq=31 ttl=227 time=1321 ms
| 64 bytes from 203.12.160.35: icmp_seq=33 ttl=227 time=565 ms
| 64 bytes from 203.12.160.35: icmp_seq=50 ttl=227 time=719 ms
| 64 bytes from 203.12.160.35: icmp_seq=54 ttl=227 time=1503 ms
| 64 bytes from 203.12.160.35: icmp_seq=55 ttl=227 time=512 ms
| 64 bytes from 203.12.160.35: icmp_seq=56 ttl=227 time=602 ms
| 64 bytes from 203.12.160.35: icmp_seq=60 ttl=227 time=1500 ms
| 64 bytes from 203.12.160.35: icmp_seq=61 ttl=227 time=517 ms
| 64 bytes from 203.12.160.35: icmp_seq=62 ttl=227 time=961 ms
| 64 bytes from 203.12.160.35: icmp_seq=76 ttl=227 time=1439 ms
| 64 bytes from 203.12.160.35: icmp_seq=77 ttl=227 time=450 ms
| 64 bytes from 203.12.160.35: icmp_seq=82 ttl=227 time=1442 ms
| 64 bytes from 203.12.160.35: icmp_seq=83 ttl=227 time=454 ms
| 64 bytes from 203.12.160.35: icmp_seq=88 ttl=227 time=1214 ms
| 64 bytes from 203.12.160.35: icmp_seq=89 ttl=227 time=214 ms
| 64 bytes from 203.12.160.35: icmp_seq=93 ttl=227 time=1182 ms
| 64 bytes from 203.12.160.35: icmp_seq=94 ttl=227 time=667 ms
| 64 bytes from 203.12.160.35: icmp_seq=100 ttl=227 time=1384 ms
|
| --- 203.12.160.35 ping statistics ---
| 100 packets transmitted, 97 received, 3% packet loss, time 99188ms
| rtt min/avg/max/mdev = 17.821/287.165/1979.984/501.613 ms, pipe 2
|
| [hloeung@darkon tmp]$ iwconfig
| lono wireless extensions.
|
| wlan0 IEEE 802.11abgn ESSID:star-local-5GHz
| Mode:Managed Frequency:5.22 GHz Access Point: C0:25:06:A6:31:0E
| Bit Rate=240 Mb/s Tx-Power=15 dBm
| Retry long limit:7 RTS thr:off Fragment thr:off
| Power Management:off
| Link Quality=61/70 Signal level=-49 dBm
| Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
| Tx excessive retries:18288 Invalid misc:21 Missed beacon:0
Notice the high Tx excessive retries? Now iwlwifi module reloaded with
11n_disable=1:
| [hloeung@darkon tmp]$ ping 203.12.160.35 -c 100 | grep -v
'ttl=[[:digit:]]\+[[:space:]]time=[[:digit:]]\{2\}\.'
| PING 203.12.160.35 (203.12.160.35) 56(84) bytes of data.
|
| --- 203.12.160.35 ping statistics ---
| 100 packets transmitted, 100 received, 0% packet loss, time 99148ms
| rtt min/avg/max/mdev = 14.929/22.947/62.614/11.495 ms
|
| [hloeung@darkon tmp]$ iwconfig
| lono wireless extensions.
|
| wlan0 IEEE 802.11abg ESSID:star-local-5GHz
| Mode:Managed Frequency:5.22 GHz Access Point: C0:25:06:A6:31:0E
| Bit Rate=54 Mb/s Tx-Power=15 dBm
| Retry long limit:7 RTS thr:off Fragment thr:off
| Power Management:on
| Link Quality=61/70 Signal level=-49 dBm
| Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
| Tx excessive retries:0 Invalid misc:155 Missed beacon:0
Hope this helps.
Regards,
Haw
** Tags removed: needs-upstream-testing
** Tags added: kernel-bug-exists-upstream
kernel-bug-exists-upstream-v3.11.10.1-saucy
--
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https://bugs.launchpad.net/bugs/837076
Title:
8086:422b [Samsung NP900X3A-A01AU] Intel Centrino Ultimate-N 6300 AGN
and packet loss using WiFi-N
Status in The Linux Kernel:
New
Status in “linux” package in Ubuntu:
Incomplete
Status in “linux” source package in Saucy:
Confirmed
Bug description:
I have recently swapped the internal WiFi adapter with an Ultimate-N 6300 and
I'm seeing a lot of packet loss. Some additional info is as follows:
wlan1 IEEE 802.11abgn ESSID:star-local
Mode:Managed Frequency:2.412 GHz Access Point: 00:22:75:29:EC:61
Bit Rate=121.5 Mb/s Tx-Power=15 dBm
Retry long limit:7 RTS thr:off Fragment thr:off
Power Management:off
Link Quality=49/70 Signal level=-61 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
[Kernel-packages] [Bug 837076] Re: 8086:422b [Samsung NP900X3A-A01AU] Intel Centrino Ultimate-N 6300 AGN and packet loss using WiFi-N
Haw Loeung, that is not the latest mainline kernel. The latest is http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.13-rc4-trusty/ . Would this be reproducible with it? ** Changed in: linux (Ubuntu) Status: Confirmed = Incomplete -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/837076 Title: 8086:422b [Samsung NP900X3A-A01AU] Intel Centrino Ultimate-N 6300 AGN and packet loss using WiFi-N Status in The Linux Kernel: New Status in “linux” package in Ubuntu: Incomplete Status in “linux” source package in Saucy: Confirmed Bug description: I have recently swapped the internal WiFi adapter with an Ultimate-N 6300 and I'm seeing a lot of packet loss. Some additional info is as follows: wlan1 IEEE 802.11abgn ESSID:star-local Mode:Managed Frequency:2.412 GHz Access Point: 00:22:75:29:EC:61 Bit Rate=121.5 Mb/s Tx-Power=15 dBm Retry long limit:7 RTS thr:off Fragment thr:off Power Management:off Link Quality=49/70 Signal level=-61 dBm Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0 Tx excessive retries:205 Invalid misc:5 Missed beacon:0 $ ping -c 20 192.168.2.1 PING 192.168.2.1 (192.168.2.1) 56(84) bytes of data. 64 bytes from 192.168.2.1: icmp_req=1 ttl=64 time=3.83 ms 64 bytes from 192.168.2.1: icmp_req=2 ttl=64 time=2.56 ms 64 bytes from 192.168.2.1: icmp_req=3 ttl=64 time=2.59 ms 64 bytes from 192.168.2.1: icmp_req=4 ttl=64 time=2.57 ms 64 bytes from 192.168.2.1: icmp_req=5 ttl=64 time=3.23 ms 64 bytes from 192.168.2.1: icmp_req=6 ttl=64 time=3.13 ms 64 bytes from 192.168.2.1: icmp_req=7 ttl=64 time=4.04 ms 64 bytes from 192.168.2.1: icmp_req=11 ttl=64 time=3.89 ms 64 bytes from 192.168.2.1: icmp_req=12 ttl=64 time=3.80 ms 64 bytes from 192.168.2.1: icmp_req=13 ttl=64 time=82.4 ms 64 bytes from 192.168.2.1: icmp_req=14 ttl=64 time=105 ms 64 bytes from 192.168.2.1: icmp_req=15 ttl=64 time=2.57 ms 64 bytes from 192.168.2.1: icmp_req=16 ttl=64 time=2.97 ms 64 bytes from 192.168.2.1: icmp_req=17 ttl=64 time=2.57 ms 64 bytes from 192.168.2.1: icmp_req=18 ttl=64 time=2.57 ms 64 bytes from 192.168.2.1: icmp_req=19 ttl=64 time=3.94 ms 64 bytes from 192.168.2.1: icmp_req=20 ttl=64 time=3.51 ms --- 192.168.2.1 ping statistics --- 20 packets transmitted, 17 received, 15% packet loss, time 19028ms rtt min/avg/max/mdev = 2.567/13.879/105.633/29.547 ms https://bugs.launchpad.net/ubuntu/+source/linux/+bug/837076/+attachment/3929375/+files/log WORKAROUND: Remove and reload the module with 11n_disable=1. wlan1 IEEE 802.11abg ESSID:star-local Mode:Managed Frequency:2.412 GHz Access Point: 00:22:75:29:EC:61 Bit Rate=54 Mb/s Tx-Power=15 dBm Retry long limit:7 RTS thr:off Fragment thr:off Power Management:off Link Quality=49/70 Signal level=-61 dBm Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0 Tx excessive retries:0 Invalid misc:32 Missed beacon:0 $ ping -c 20 192.168.2.1 PING 192.168.2.1 (192.168.2.1) 56(84) bytes of data. 64 bytes from 192.168.2.1: icmp_req=1 ttl=64 time=1.82 ms 64 bytes from 192.168.2.1: icmp_req=2 ttl=64 time=1.17 ms 64 bytes from 192.168.2.1: icmp_req=3 ttl=64 time=1.80 ms 64 bytes from 192.168.2.1: icmp_req=4 ttl=64 time=0.650 ms 64 bytes from 192.168.2.1: icmp_req=5 ttl=64 time=1.52 ms 64 bytes from 192.168.2.1: icmp_req=6 ttl=64 time=2.29 ms 64 bytes from 192.168.2.1: icmp_req=7 ttl=64 time=1.29 ms 64 bytes from 192.168.2.1: icmp_req=8 ttl=64 time=1.65 ms 64 bytes from 192.168.2.1: icmp_req=9 ttl=64 time=1.70 ms 64 bytes from 192.168.2.1: icmp_req=10 ttl=64 time=1.06 ms 64 bytes from 192.168.2.1: icmp_req=11 ttl=64 time=1.52 ms 64 bytes from 192.168.2.1: icmp_req=12 ttl=64 time=1.49 ms 64 bytes from 192.168.2.1: icmp_req=13 ttl=64 time=1.89 ms 64 bytes from 192.168.2.1: icmp_req=14 ttl=64 time=1.46 ms 64 bytes from 192.168.2.1: icmp_req=15 ttl=64 time=1.41 ms 64 bytes from 192.168.2.1: icmp_req=16 ttl=64 time=1.28 ms 64 bytes from 192.168.2.1: icmp_req=17 ttl=64 time=1.40 ms 64 bytes from 192.168.2.1: icmp_req=18 ttl=64 time=0.946 ms 64 bytes from 192.168.2.1: icmp_req=19 ttl=64 time=1.32 ms 64 bytes from 192.168.2.1: icmp_req=20 ttl=64 time=1.32 ms --- 192.168.2.1 ping statistics --- 20 packets transmitted, 20 received, 0% packet loss, time 19026ms rtt min/avg/max/mdev = 0.650/1.453/2.291/0.356 ms ProblemType: Bug DistroRelease: Ubuntu 11.10 Package: linux-image-3.0.0-9-generic 3.0.0-9.14 ProcVersionSignature: Ubuntu 3.0.0-9.14-generic 3.0.3 Uname: Linux 3.0.0-9-generic x86_64 AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24. Architecture: amd64 ArecordDevices: List of CAPTURE Hardware Devices card
[Kernel-packages] [Bug 837076] Re: 8086:422b [Samsung NP900X3A-A01AU] Intel Centrino Ultimate-N 6300 AGN and packet loss using WiFi-N
** Tags removed: kernel-bug-exists-upstream ** Tags added: needs-upstream-testing -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/837076 Title: 8086:422b [Samsung NP900X3A-A01AU] Intel Centrino Ultimate-N 6300 AGN and packet loss using WiFi-N Status in The Linux Kernel: New Status in “linux” package in Ubuntu: Incomplete Status in “linux” source package in Saucy: Confirmed Bug description: I have recently swapped the internal WiFi adapter with an Ultimate-N 6300 and I'm seeing a lot of packet loss. Some additional info is as follows: wlan1 IEEE 802.11abgn ESSID:star-local Mode:Managed Frequency:2.412 GHz Access Point: 00:22:75:29:EC:61 Bit Rate=121.5 Mb/s Tx-Power=15 dBm Retry long limit:7 RTS thr:off Fragment thr:off Power Management:off Link Quality=49/70 Signal level=-61 dBm Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0 Tx excessive retries:205 Invalid misc:5 Missed beacon:0 $ ping -c 20 192.168.2.1 PING 192.168.2.1 (192.168.2.1) 56(84) bytes of data. 64 bytes from 192.168.2.1: icmp_req=1 ttl=64 time=3.83 ms 64 bytes from 192.168.2.1: icmp_req=2 ttl=64 time=2.56 ms 64 bytes from 192.168.2.1: icmp_req=3 ttl=64 time=2.59 ms 64 bytes from 192.168.2.1: icmp_req=4 ttl=64 time=2.57 ms 64 bytes from 192.168.2.1: icmp_req=5 ttl=64 time=3.23 ms 64 bytes from 192.168.2.1: icmp_req=6 ttl=64 time=3.13 ms 64 bytes from 192.168.2.1: icmp_req=7 ttl=64 time=4.04 ms 64 bytes from 192.168.2.1: icmp_req=11 ttl=64 time=3.89 ms 64 bytes from 192.168.2.1: icmp_req=12 ttl=64 time=3.80 ms 64 bytes from 192.168.2.1: icmp_req=13 ttl=64 time=82.4 ms 64 bytes from 192.168.2.1: icmp_req=14 ttl=64 time=105 ms 64 bytes from 192.168.2.1: icmp_req=15 ttl=64 time=2.57 ms 64 bytes from 192.168.2.1: icmp_req=16 ttl=64 time=2.97 ms 64 bytes from 192.168.2.1: icmp_req=17 ttl=64 time=2.57 ms 64 bytes from 192.168.2.1: icmp_req=18 ttl=64 time=2.57 ms 64 bytes from 192.168.2.1: icmp_req=19 ttl=64 time=3.94 ms 64 bytes from 192.168.2.1: icmp_req=20 ttl=64 time=3.51 ms --- 192.168.2.1 ping statistics --- 20 packets transmitted, 17 received, 15% packet loss, time 19028ms rtt min/avg/max/mdev = 2.567/13.879/105.633/29.547 ms https://bugs.launchpad.net/ubuntu/+source/linux/+bug/837076/+attachment/3929375/+files/log WORKAROUND: Remove and reload the module with 11n_disable=1. wlan1 IEEE 802.11abg ESSID:star-local Mode:Managed Frequency:2.412 GHz Access Point: 00:22:75:29:EC:61 Bit Rate=54 Mb/s Tx-Power=15 dBm Retry long limit:7 RTS thr:off Fragment thr:off Power Management:off Link Quality=49/70 Signal level=-61 dBm Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0 Tx excessive retries:0 Invalid misc:32 Missed beacon:0 $ ping -c 20 192.168.2.1 PING 192.168.2.1 (192.168.2.1) 56(84) bytes of data. 64 bytes from 192.168.2.1: icmp_req=1 ttl=64 time=1.82 ms 64 bytes from 192.168.2.1: icmp_req=2 ttl=64 time=1.17 ms 64 bytes from 192.168.2.1: icmp_req=3 ttl=64 time=1.80 ms 64 bytes from 192.168.2.1: icmp_req=4 ttl=64 time=0.650 ms 64 bytes from 192.168.2.1: icmp_req=5 ttl=64 time=1.52 ms 64 bytes from 192.168.2.1: icmp_req=6 ttl=64 time=2.29 ms 64 bytes from 192.168.2.1: icmp_req=7 ttl=64 time=1.29 ms 64 bytes from 192.168.2.1: icmp_req=8 ttl=64 time=1.65 ms 64 bytes from 192.168.2.1: icmp_req=9 ttl=64 time=1.70 ms 64 bytes from 192.168.2.1: icmp_req=10 ttl=64 time=1.06 ms 64 bytes from 192.168.2.1: icmp_req=11 ttl=64 time=1.52 ms 64 bytes from 192.168.2.1: icmp_req=12 ttl=64 time=1.49 ms 64 bytes from 192.168.2.1: icmp_req=13 ttl=64 time=1.89 ms 64 bytes from 192.168.2.1: icmp_req=14 ttl=64 time=1.46 ms 64 bytes from 192.168.2.1: icmp_req=15 ttl=64 time=1.41 ms 64 bytes from 192.168.2.1: icmp_req=16 ttl=64 time=1.28 ms 64 bytes from 192.168.2.1: icmp_req=17 ttl=64 time=1.40 ms 64 bytes from 192.168.2.1: icmp_req=18 ttl=64 time=0.946 ms 64 bytes from 192.168.2.1: icmp_req=19 ttl=64 time=1.32 ms 64 bytes from 192.168.2.1: icmp_req=20 ttl=64 time=1.32 ms --- 192.168.2.1 ping statistics --- 20 packets transmitted, 20 received, 0% packet loss, time 19026ms rtt min/avg/max/mdev = 0.650/1.453/2.291/0.356 ms ProblemType: Bug DistroRelease: Ubuntu 11.10 Package: linux-image-3.0.0-9-generic 3.0.0-9.14 ProcVersionSignature: Ubuntu 3.0.0-9.14-generic 3.0.3 Uname: Linux 3.0.0-9-generic x86_64 AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24. Architecture: amd64 ArecordDevices: List of CAPTURE Hardware Devices card 0: PCH [HDA Intel PCH], device 0: ALC269VB Analog [ALC269VB Analog] Subdevices: 1/1 Subdevice #0: subdevice #0 AudioDevicesInUse: USER
