Comment 0 for bug 1757561

Wifi connection on my Laptop Toshiba S55-A579 with UBUNTU 17.10 gets disconnected at random intervals. I noticed this behavior 2 months ago and still no solution available. It disconnects at home and even at public places. The controller is:

03:00.0 Network controller: Qualcomm Atheros QCA9565 / AR9565 Wireless Network Adapter (rev 01)

I tried some solutions from internet, like setting: wifi.scan-rand-mac-address=no and even disconnecting the energy saver feature. Installing a firmware that I found in internet: firmware-ath9k-htc_1.4.0-81-gf206e56+dfsg-2_all, doesn't help at all.

Sometimes, when the disconnection happens, the icon of wifi at the top bar transform into a grey box.

It is a very annoying bug, it seems that came with some update, because it was working just fine 2 months ago.

Best.

ProblemType: Bug
DistroRelease: Ubuntu 17.10
Package: network-manager 1.8.4-1ubuntu3
ProcVersionSignature: Ubuntu 4.13.0-37.42-generic 4.13.13
Uname: Linux 4.13.0-37-generic x86_64
NonfreeKernelModules: nvidia_uvm nvidia_drm nvidia_modeset nvidia
ApportVersion: 2.20.7-0ubuntu3.7
Architecture: amd64
CurrentDesktop: ubuntu:GNOME
Date: Wed Mar 21 23:41:21 2018
IfupdownConfig:
 # interfaces(5) file used by ifup(8) and ifdown(8)
 auto lo
 iface lo inet loopback
InstallationDate: Installed on 2017-11-18 (123 days ago)
InstallationMedia: Ubuntu 17.10 "Artful Aardvark" - Release amd64 (20171018)
IpRoute:
 default via 192.168.1.254 dev wlp3s0 proto static metric 600
 169.254.0.0/16 dev wlp3s0 scope link metric 1000
 192.168.1.0/24 dev wlp3s0 proto kernel scope link src 192.168.1.22 metric 600
NetworkManager.state:
 [main]
 NetworkingEnabled=true
 WirelessEnabled=true
 WWANEnabled=true
SourcePackage: network-manager
UpgradeStatus: No upgrade log present (probably fresh install)
modified.conffile..etc.NetworkManager.conf.d.default-wifi-powersave-on.conf:
 [connection]
 wifi.powersave = 0
mtime.conffile..etc.NetworkManager.conf.d.default-wifi-powersave-on.conf: 2018-03-21T22:57:47.465761
nmcli-dev:
 DEVICE TYPE STATE DBUS-PATH CONNECTION CON-UUID CON-PATH
 wlp3s0 wifi connected /org/freedesktop/NetworkManager/Devices/3 Bbox_Amandine 806153c3-7543-49de-838c-9261d9f3f730 /org/freedesktop/NetworkManager/ActiveConnection/24
 E4:98:D1:D9:AA:FE bt disconnected /org/freedesktop/NetworkManager/Devices/4 -- -- --
 enp4s0 ethernet unavailable /org/freedesktop/NetworkManager/Devices/2 -- -- --
 lo loopback unmanaged /org/freedesktop/NetworkManager/Devices/1 -- -- --
nmcli-nm:
 RUNNING VERSION STATE STARTUP CONNECTIVITY NETWORKING WIFI-HW WIFI WWAN-HW WWAN
 running 1.8.4 connected started full enabled enabled enabled enabled enabled