Running 4.9.0-040900rc6, just had a drop out. Noticed that dmesg had
this output:
First this line, which seemed to coincide with the dropout:
[ 3627.072802] wlan0: AP 00:07:26:aa:e0:45 changed bandwidth, new config
is 2462 MHz, width 2 (2452/0 MHz)
Then, after a minute, this and it came back:
[ 3707.386740] wlan0: authenticate with 00:07:26:aa:e0:45
[ 3707.394906] wlan0: send auth to 00:07:26:aa:e0:45 (try 1/3)
[ 3707.397243] wlan0: authenticated
[ 3707.397828] wlan0: associate with 00:07:26:aa:e0:45 (try 1/3)
[ 3707.406078] wlan0: RX AssocResp from 00:07:26:aa:e0:45 (capab=0x431 status=0
aid=1)
[ 3707.413670] wlan0: associated
[ 3707.447412] wlan0: Limiting TX power to 20 (20 - 0) dBm as advertised by
00:07:26:aa:e0:45
** Changed in: linux (Ubuntu)
Status: Incomplete => Confirmed
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https://bugs.launchpad.net/bugs/1643165
Title:
Wifi drops out regularly after upgrade to 16.04
Status in linux package in Ubuntu:
Confirmed
Bug description:
Since upgrading to 16.04, my wifi has seemed a lot more flaky, it'll
drop out for 20s every few minutes then come back. network manager
still thinks that it is connected, but websites will fail to load/time
out. Reconnecting to the AP (by clicking on it in network-manager)
seems to re-establish the connection. I typically sit 6ft from the
access point so the signal is strong and much stronger than any nearby
APs.
ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: linux-image-4.4.0-45-generic 4.4.0-45.66
ProcVersionSignature: Ubuntu 4.4.0-45.66-generic 4.4.21
Uname: Linux 4.4.0-45-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.1
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: shaun 2212 F.... pulseaudio
CurrentDesktop: Unity
Date: Sat Nov 19 10:39:23 2016
HibernationDevice: RESUME=UUID=e9e7a3d6-2d7f-4d2d-8880-ace10b4a942f
InstallationDate: Installed on 2012-09-26 (1515 days ago)
InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Alpha amd64 (20120905.2)
MachineType: SAMSUNG ELECTRONICS CO., LTD. 900X3C/900X3D/900X4C/900X4D
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.4.0-45-generic
root=/dev/mapper/ubuntu-root ro quiet splash intel_pstate=enable vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-4.4.0-45-generic N/A
linux-backports-modules-4.4.0-45-generic N/A
linux-firmware 1.157.4
SourcePackage: linux
UpgradeStatus: Upgraded to xenial on 2016-04-25 (207 days ago)
dmi.bios.date: 07/12/2012
dmi.bios.vendor: Phoenix Technologies Ltd.
dmi.bios.version: P03AAC
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: SAMSUNG_NP1234567890
dmi.board.vendor: SAMSUNG ELECTRONICS CO., LTD.
dmi.board.version: FAB1
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 9
dmi.chassis.vendor: SAMSUNG ELECTRONICS CO., LTD.
dmi.chassis.version: 0.1
dmi.modalias:
dmi:bvnPhoenixTechnologiesLtd.:bvrP03AAC:bd07/12/2012:svnSAMSUNGELECTRONICSCO.,LTD.:pn900X3C/900X3D/900X4C/900X4D:pvr0.1:rvnSAMSUNGELECTRONICSCO.,LTD.:rnSAMSUNG_NP1234567890:rvrFAB1:cvnSAMSUNGELECTRONICSCO.,LTD.:ct9:cvr0.1:
dmi.product.name: 900X3C/900X3D/900X4C/900X4D
dmi.product.version: 0.1
dmi.sys.vendor: SAMSUNG ELECTRONICS CO., LTD.
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