thor@thor-ideapad:~$ iwconfig lo no wireless extensions.
wlp1s0 IEEE 802.11 ESSID:"Johansen" Mode:Managed Frequency:5.18 GHz Access Point: 58:6D:8F:C6:38:89 Bit Rate=72.2 Mb/s Tx-Power=30 dBm Retry short limit:7 RTS thr=2347 B Fragment thr:off Power Management:off Link Quality=70/70 Signal level=-38 dBm Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0 Tx excessive retries:0 Invalid misc:0 Missed beacon:0 enp2s0 no wireless extensions. The E2500's hardware is v1.0 and the firmware is v2.0.00. Devices that are working flawlessly with this router include: iPhone 6 Plus Huawei Nexus 6P Samsung Galaxy S5 MacBook Pro 13" Mid-2012 RTL8192CUS-based USB WiFi dongle I have never had any connection issues. My other laptops have been able to remain connected with open SSH sessions to remote systems for days at a time without disconnecting. I should mention that I now make sure to ping my router, not the Internet, to check if the WiFi interface is working properly. Since my Internet is reliable, it doesn't make much of a difference, but this way, I eliminate potential error sources. The USB dongle listed last was purchased today and is plugged into the Lenovo as a workaround for WiFi until it's fixed. It works perfectly fine if I use the rtl8192cu-fixes driver. I unplug it whenever I test the internal WiFi for this bug ticket. (Is it just me, or are all the Realtek WiFi drivers in the kernel kind of unreliable? This is not the first time Realtek chips have given me trouble.) -- 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/1618267 Title: RTL8821AE abruptly halts all network traffic Status in linux package in Ubuntu: Incomplete Bug description: Computer: Lenovo IdeaPad 110 WiFi AP: Linksys E2500 After a few minutes of mixed Internet use, the WiFi hangs and the interface ceases to pass traffic: 64 bytes from 8.8.8.8: icmp_seq=281 ttl=55 time=12.8 ms 64 bytes from 8.8.8.8: icmp_seq=282 ttl=55 time=12.5 ms 64 bytes from 8.8.8.8: icmp_seq=283 ttl=55 time=58.4 ms 64 bytes from 8.8.8.8: icmp_seq=284 ttl=55 time=68.0 ms 64 bytes from 8.8.8.8: icmp_seq=285 ttl=55 time=65.6 ms ping: sendmsg: No buffer space available ping: sendmsg: No buffer space available ping: sendmsg: No buffer space available ^C --- 8.8.8.8 ping statistics --- 314 packets transmitted, 283 received, 9% packet loss, time 366615ms rtt min/avg/max/mdev = 11.423/177.382/7227.733/806.648 ms, pipe 8 Before the driver hangs, speeds are 30/5 Mbps despite a 75 Mbps WiFi transmit rate and a 70/70 Mbps symmetrical fiber connection in the house. The connection and the router are known to perform better than this with other equipment. Forcing the router into 802.11g mode does, at least at a cursory glance, seem to mitigate the halting problem, but speeds remain abysmal. If there is any kind of technically involved tests I can do to speed up the debugging of this problem, let me know. I have some experience with embedded development in C. ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: linux-image-4.4.0-34-generic 4.4.0-34.53 ProcVersionSignature: Ubuntu 4.4.0-34.53-generic 4.4.15 Uname: Linux 4.4.0-34-generic x86_64 ApportVersion: 2.20.1-0ubuntu2.1 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: thor 3179 F.... pulseaudio /dev/snd/controlC0: thor 3179 F.... pulseaudio CurrentDesktop: Unity Date: Tue Aug 30 01:36:22 2016 HibernationDevice: RESUME=UUID=a482ae0a-dd87-41de-be2c-50541edcfa53 InstallationDate: Installed on 2016-08-29 (0 days ago) InstallationMedia: Ubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160719) MachineType: LENOVO 80TJ ProcFB: 0 radeondrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.4.0-34-generic.efi.signed root=/dev/mapper/ubuntu--vg-root ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-4.4.0-34-generic N/A linux-backports-modules-4.4.0-34-generic N/A linux-firmware 1.157.3 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 03/24/2016 dmi.bios.vendor: Lenovo dmi.bios.version: 1QCN16WW dmi.board.asset.tag: No Asset Tag dmi.board.name: Nano 5A8 dmi.board.vendor: LENOVO dmi.board.version: SDK0J40700 WIN dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Lenovo ideapad 110-15ACL dmi.modalias: dmi:bvnLenovo:bvr1QCN16WW:bd03/24/2016:svnLENOVO:pn80TJ:pvrLenovoideapad110-15ACL:rvnLENOVO:rnNano5A8:rvrSDK0J40700WIN:cvnLENOVO:ct10:cvrLenovoideapad110-15ACL: dmi.product.name: 80TJ dmi.product.version: Lenovo ideapad 110-15ACL dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1618267/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp