I'm running an Acer 5920 laptop. Wi-fi was good with 10.04. Recently wiped the drive and installed 11.04 Xubuntu, wi-fi horrible. Tried Mint 12, same thing.
Asked about it in this thread: http://ubuntuforums.org/showthread.php?t=1901351 I tried the work-around described, which apparently disables the "n" band functionality? We're on satellite internet, so it's never very fast, but after the modification to modprobe Speedtest.net gives me virtually identical results on Ethernet or wi-fi. We're running an old Linksys WRT54G router. Could that be part of the problem?? -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to network-manager in Ubuntu. https://bugs.launchpad.net/bugs/875780 Title: Wireless Very Slow - Intel Corporation PRO/Wireless 4965 Status in “network-manager” package in Ubuntu: Confirmed Bug description: In Ubuntu 10.10 and 11.04, my wireless works perfectly. I installed a fresh version of 11.10 and the wireless connects, but the transfer rate is extremely slow, about 30Kbps (should be around 2Mbps). I reinstalled 3 times and no luck. When I connect to my mobile phone as a hotspot, I get fast speeds again so this is related to my wireless card/router. I have never posted a bug report before so please tell me what further info you require. I have a Dell XPS M1530, which is a popular Dell range so this must effect others. I believe my wireless card is Intel Corporation PRO/Wireless 4965 AG or AGN [Kedron] Network Connection I saw these commands requested in other topics so thought they may be of help; brucey@Brucey:~$ iwconfig lo no wireless extensions. eth0 no wireless extensions. wlan0 IEEE 802.11abgn ESSID:"dlink39" Mode:Managed Frequency:2.412 GHz Access Point: 1C:AF:F7:29:5C:9E Bit Rate=65 Mb/s Tx-Power=15 dBm Retry long limit:7 RTS thr:off Fragment thr:off Power Management:off Link Quality=59/70 Signal level=-51 dBm Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0 Tx excessive retries:458 Invalid misc:0 Missed beacon:0 brucey@Brucey:~$ iwlist wlan0 scanning wlan0 Scan completed : Cell 01 - Address: 1C:AF:F7:29:5C:9E Channel:1 Frequency:2.412 GHz (Channel 1) Quality=52/70 Signal level=-58 dBm Encryption key:on ESSID:"dlink39" Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 9 Mb/s 18 Mb/s; 36 Mb/s; 54 Mb/s Bit Rates:6 Mb/s; 12 Mb/s; 24 Mb/s; 48 Mb/s Mode:Master Extra:tsf=000000363f913141 Extra: Last beacon: 81932ms ago IE: Unknown: 0007646C696E6B3339 IE: Unknown: 010882848B961224486C IE: Unknown: 030101 IE: Unknown: 2A0100 IE: Unknown: 32040C183060 IE: Unknown: 2D1AEE1117FFFF0000010000000000000000000000000C0000000000 IE: Unknown: 3D1601050000000000000000000000000000000000000000 IE: Unknown: 3E0100 IE: Unknown: DD180050F2020101800003A4000027A4000042435E0062322F00 IE: Unknown: 7F0101 IE: Unknown: DD07000C4307000000 IE: Unknown: 0706474220010D10 IE: Unknown: DD1E00904C33EE1117FFFF0000010000000000000000000000000C0000000000 IE: Unknown: DD1A00904C3401050000000000000000000000000000000000000000 IE: Unknown: DD050050F20500 IE: Unknown: DD750050F204104A00011010440001021041000100103B000103104700107B63D8AA81523D98C7CB1CAFF7295C9E10210006442D4C696E6B102300074449522D363135102400074449522D3631351042000830303030303030301054000800060050F2040001101100074449522D363135100800020086 brucey@Brucey:~$ lspci 00:00.0 Host bridge: Intel Corporation Mobile PM965/GM965/GL960 Memory Controller Hub (rev 0c) 00:01.0 PCI bridge: Intel Corporation Mobile PM965/GM965/GL960 PCI Express Root Port (rev 0c) 00:1a.0 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #4 (rev 02) 00:1a.1 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #5 (rev 02) 00:1a.7 USB Controller: Intel Corporation 82801H (ICH8 Family) USB2 EHCI Controller #2 (rev 02) 00:1b.0 Audio device: Intel Corporation 82801H (ICH8 Family) HD Audio Controller (rev 02) 00:1c.0 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 1 (rev 02) 00:1c.1 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 2 (rev 02) 00:1c.4 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 5 (rev 02) 00:1d.0 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #1 (rev 02) 00:1d.1 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #2 (rev 02) 00:1d.2 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #3 (rev 02) 00:1d.7 USB Controller: Intel Corporation 82801H (ICH8 Family) USB2 EHCI Controller #1 (rev 02) 00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev f2) 00:1f.0 ISA bridge: Intel Corporation 82801HEM (ICH8M) LPC Interface Controller (rev 02) 00:1f.1 IDE interface: Intel Corporation 82801HBM/HEM (ICH8M/ICH8M-E) IDE Controller (rev 02) 00:1f.2 SATA controller: Intel Corporation 82801HBM/HEM (ICH8M/ICH8M-E) SATA AHCI Controller (rev 02) 00:1f.3 SMBus: Intel Corporation 82801H (ICH8 Family) SMBus Controller (rev 02) 01:00.0 VGA compatible controller: nVidia Corporation G84 [GeForce 8600M GT] (rev a1) 03:09.0 FireWire (IEEE 1394): Ricoh Co Ltd R5C832 IEEE 1394 Controller (rev 05) 03:09.1 SD Host controller: Ricoh Co Ltd R5C822 SD/SDIO/MMC/MS/MSPro Host Adapter (rev 22) 03:09.2 System peripheral: Ricoh Co Ltd R5C592 Memory Stick Bus Host Adapter (rev 12) 03:09.3 System peripheral: Ricoh Co Ltd xD-Picture Card Controller (rev 12) 09:00.0 Ethernet controller: Marvell Technology Group Ltd. 88E8040 PCI-E Fast Ethernet Controller (rev 12) 0b:00.0 Network controller: Intel Corporation PRO/Wireless 4965 AG or AGN [Kedron] Network Connection (rev 61) ProblemType: Bug DistroRelease: Ubuntu 11.10 Package: network-manager 0.9.1.90-0ubuntu3 ProcVersionSignature: Ubuntu 3.0.0-12.20-generic 3.0.4 Uname: Linux 3.0.0-12-generic x86_64 NonfreeKernelModules: nvidia ApportVersion: 1.23-0ubuntu3 Architecture: amd64 CRDA: Error: [Errno 2] No such file or directory Date: Sun Oct 16 16:01:57 2011 Gconf: IfupdownConfig: auto lo iface lo inet loopback InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012) IpRoute: default via 192.168.0.1 dev wlan0 proto static 169.254.0.0/16 dev wlan0 scope link metric 1000 192.168.0.0/24 dev wlan0 proto kernel scope link src 192.168.0.103 metric 2 Keyfiles: Error: [Errno 2] No such file or directory NetworkManager.state: [main] NetworkingEnabled=true WirelessEnabled=true WWANEnabled=true WimaxEnabled=true ProcEnviron: LANGUAGE=en_GB:en PATH=(custom, no user) LANG=en_GB.UTF-8 SHELL=/bin/bash SourcePackage: network-manager UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/875780/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
