Wifi drops with Ubuntu version 16.04.2 LTS (hardware enablement turned
on) with kernel versions 4.10.0-27 and 4.10.0-28. It worked OK with
kernel 4.8.0-58. The kernel upgrade was done when prompted by Ubuntu.
The wifi drops when BBC's iplayer or any of the speed test sites
downloads a lot of data.
The wifi configuration as produced by a sudo lshw -C network is:
*-network
description: Wireless interface
product: RTL8821AE 802.11ac PCIe Wireless Network Adapter
vendor: Realtek Semiconductor Co., Ltd.
physical id: 0
bus info: pci@0000:03:00.0
logical name: wlp3s0
version: 00
serial: b0:c0:90:3b:d8:f3
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list ethernet physical
wireless
configuration: broadcast=yes driver=rtl8821ae
driverversion=4.10.0-27-generic firmware=N/A ip=192.168.0.12 latency=0 link=yes
multicast=yes wireless=IEEE 802.11
resources: irq:51 ioport:3000(size=256) memory:b2000000-b2003fff
After the wifi is dropped, the command sudo service network-manager
restart does not turn on the wifi again
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Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1622293
Title:
rtl8821ae WiFI does not work
Status in linux package in Ubuntu:
Triaged
Bug description:
rtl8821ae does not work out-of the box on Ubuntu 16.04. It does not
detect any WIFi networks and laptop starts with Wifi disabled in
NetworkManager. To make rtl8821ae work I have to do the following:
echo "blacklist ideapad_laptop" | sudo tee /etc/modprobe.d/idepad.conf
After that rtl8821ae loses connection occasionally. None of those helped:
echo rtl8812ae >> /etc/modules
echo "options rtl8821ae ips=0 fwlps=0" | sudo tee
/etc/modprobe.d/rtl8821ae.conf
sudo modprobe -r rtl8821ae && sudo modprobe rtl8821ae
options rtl8821ae ips=0 swenc=1 debug=5 msi=0
sudo iw dev wlp2s0 set power_save off
Installing new driver from here
https://github.com/lwfinger/rtlwifi_new did not help.
Issue close to this one was reported here:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1526683
ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: linux-image-4.4.0-36-generic 4.4.0-36.55
ProcVersionSignature: Ubuntu 4.4.0-36.55-generic 4.4.16
Uname: Linux 4.4.0-36-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.1
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC1: antoshkka 3397 F.... pulseaudio
/dev/snd/controlC0: antoshkka 3397 F.... pulseaudio
CurrentDesktop: Unity
Date: Sun Sep 11 10:09:39 2016
HibernationDevice: RESUME=UUID=de96877a-7ace-47cc-ac4c-b4662a72a1b7
InstallationDate: Installed on 2016-09-10 (0 days ago)
InstallationMedia: Ubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64
(20160719)
MachineType: LENOVO 80NY
ProcFB: 0 amdgpudrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-36-generic.efi.signed
root=UUID=d62213ac-da8e-417a-83fb-b8163b78199b ro quiet splash vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-4.4.0-36-generic N/A
linux-backports-modules-4.4.0-36-generic N/A
linux-firmware 1.157.3
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 09/15/2015
dmi.bios.vendor: LENOVO
dmi.bios.version: CECN43WW
dmi.board.asset.tag: NO Asset Tag
dmi.board.name: Allsparks 5B
dmi.board.vendor: LENOVO
dmi.board.version: SDK0J40688 WIN
dmi.chassis.asset.tag: NO Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Lenovo ideapad Y700-15ACZ
dmi.modalias:
dmi:bvnLENOVO:bvrCECN43WW:bd09/15/2015:svnLENOVO:pn80NY:pvrLenovoideapadY700-15ACZ:rvnLENOVO:rnAllsparks5B:rvrSDK0J40688WIN:cvnLENOVO:ct10:cvrLenovoideapadY700-15ACZ:
dmi.product.name: 80NY
dmi.product.version: Lenovo ideapad Y700-15ACZ
dmi.sys.vendor: LENOVO
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