Wifi does not work (chip: Intel 3945ABG)

[Jarno Suni]

Network manager tells "device not ready". Restarting network manager does not help.
Wifi failed to work occasionally before, but now it does not work at all. Hardware may be broken. At least it is as for wired network, I suppose.

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: linux-image-4.4.0-57-generic 4.4.0-57.78
ProcVersionSignature: Ubuntu 4.4.0-57.78-generic 4.4.35
Uname: Linux 4.4.0-57-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.4
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: jarnos 1623 F.... pulseaudio
CurrentDesktop: XFCE
Date: Fri Jan 27 10:03:55 2017
EcryptfsInUse: Yes
InstallationDate: Installed on 2016-04-28 (273 days ago)
InstallationMedia: Xubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1)
MachineType: LENOVO 89224MG
PccardctlIdent:
 Socket 0:
   no product info available
PccardctlStatus:
 Socket 0:
   no card
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-57-generic root=UUID=15cc1d62-fbc6-4ce3-bf32-e35c61a921cf ro
RelatedPackageVersions:
 linux-restricted-modules-4.4.0-57-generic N/A
 linux-backports-modules-4.4.0-57-generic N/A
 linux-firmware 1.157.6
RfKill:
 0: phy0: Wireless LAN
  Soft blocked: no
  Hard blocked: no
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 09/13/06
dmi.bios.vendor: LENOVO
dmi.bios.version: 63ET13WW
dmi.board.name: CAPELL VALLEY(NAPA) CRB
dmi.board.vendor: LENOVO
dmi.board.version: Not Applicable
dmi.chassis.type: 10
dmi.chassis.vendor: No Enclosure
dmi.chassis.version: N/A
dmi.modalias: dmi:bvnLENOVO:bvr63ET13WW:bd09/13/06:svnLENOVO:pn89224MG:pvr3000C200:rvnLENOVO:rnCAPELLVALLEY(NAPA)CRB:rvrNotApplicable:cvnNoEnclosure:ct10:cvrN/A:
dmi.product.name: 89224MG
dmi.product.version: 3000 C200
dmi.sys.vendor: LENOVO

[Brad Figg (brad-figg)]

This change was made by a bot.

[Jarno Suni (jarnos)]

I also tried to boot from live USB, both 14.04.1 and 16.04.1 and same thing.
I could not switch wireless on by "Fn + F5" in Linux
https://support.lenovo.com/fi/en/documents/migr-63140

[Joseph Salisbury (jsalisbury)]

Did this issue start happening after an update/upgrade? Was there a prior kernel version where you were not having this particular problem?

Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v4.10 kernel[0].

If this bug is fixed in the mainline kernel, please add the following tag 'kernel-fixed-upstream'.

If the mainline kernel does not fix this bug, please add the tag: 'kernel-bug-exists-upstream'.

Once testing of the upstream kernel is complete, please mark this bug as "Confirmed".

Thanks in advance.

[0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.10-rc6

[Jarno Suni (jarnos)]

By 4.4.0-22 network manager tells "Wi-Fi is disabled" whereas in 4.4.0-51 and later it tells "device not ready". I do not remember, if this happened after update, but Wi-Fi used to work by the previous kernels before.

[Jarno Suni (jarnos)]

By 4.10-rc6 Network Manager tells "Wi-Fi is disabled" even if I check "Enable Wi-Fi".

[Joseph Salisbury (jsalisbury)]

This issue appears to be an upstream bug, since you tested the latest upstream kernel. Would it be possible for you to open an upstream bug report[0]? That will allow the upstream Developers to examine the issue, and may provide a quicker resolution to the bug.

Please follow the instructions on the wiki page[0]. The first step is to email the appropriate mailing list. If no response is received, then a bug may be opened on bugzilla.kernel.org.

Once this bug is reported upstream, please add the tag: 'kernel-bug-reported-upstream'.

[0] https://wiki.ubuntu.com/Bugs/Upstream/kernel

[Charles Barnwell (cgbarnwell)]

I think I may have the same problem as this, symptoms are similar.

I performed and aptitude full-upgrade earlier this week. This installed a new kernel 4.4.0-71 amongst other package updates. After a reboot NetworkManager applet was stating 'Device not ready' for the wifi device. I went back to an earlier kernel, but the symptoms are the same.

My wifi device is Intel Centrino Advanced-N 6205 [Taylor Peak]

To work around the problem I disable wifi, restart NetworkManager and enable wifi. The wifi then connects. The following three commands get the system working fine.

nmcli radio wifi off
systemctl restart NetworkManager
sleep 5
nmcli radio wifi on