*** This bug is a duplicate of bug 1585863 ***
https://bugs.launchpad.net/bugs/1585863
** This bug has been marked a duplicate of bug 1585863
WiFi malfunction after suspend & resume stress
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I have the same problem in 16.04 for my Wifi.
$ lspci -knn | grep Net -A2
04:00.0 Network controller [0280]: Qualcomm Atheros AR9485 Wireless Network
Adapter [168c:0032] (rev 01)
Subsystem: AzureWave AR9485 Wireless Network Adapter [1a3b:2126]
Kernel driver in use: ath9k
Looks like this bug is a duplicate of Bug #1585863. But I will leave
experts in the matter to decide and declare the duplication, if any.
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https://bugs.launchpad.net/bugs/1448555
Title:
I have this bug as well in a clean MATE 16.04 install.
x220, Intel 6205 wireless . Using the firmware iwlwifi 18.168.6.1
Various things like #12 sudo iwlist wlan0 scan - does not work for me.
Also disabling Wireless and/or networking via Network Manager - and re-
enabling does nothing.
Nor
I run 14.04 and have the same issues since a few weeks. I fixed the
problem by removing network-manager and installing connman.
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Title:
Bug still there in System76 Wild Dog Pro. Ubuntu 15.10.
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https://bugs.launchpad.net/bugs/1448555
Title:
network-manager does not autoconnect to wifi network after resume from
The bug affects me too and in my case it is serious because my wifi
connection is unstable.
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Title:
network-manager does not autoconnect to wifi
I can confirm that this bug is eliminated in 15.10.
Unfortunately another old bug reappeared (random disconnect).
I will look into this in more detail.
For me it is solved.
Thanks
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suggestion #15 does not work either.
Linux mbr 3.19.0-31-generic #36-Ubuntu SMP Wed Oct 7 15:04:02 UTC 2015 x86_64
x86_64 x86_64 GNU/Linux
using systemd
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After upgrading to Trusty w/ systemd, the script needs to named
/lib/systemd/system-sleep/12_wifi, and 'resume' changed to 'post'
#!/bin/bash
case $1 in
"post")
iwlist scan >/dev/null 2>&1
;;
esac
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back to suggestion #12:
It does not fire (still don't know why)
However, running iwlist scan (as sudo) DOES reconnect.
Today I connected to another network (which I use regulary. The
connection was established immediately after resume.
After putting the machine to sleep again, no reconnect
suggestion #12 does not change the situation on my machines
network stays down and I have to reconnect to the WiFi manually or restart
Network Manager
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Putting the following into /etc/pm/sleep.d/12_wifi and chmod +x-ing the
file solves the problem for me, but it's a bit of a hack.
#!/bin/bash
case $1 in
"resume")
iwlist scan
;;
esac
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I have a similar symptom; doing
sudo iwlist wlan0 scan
after resume tickles NetworkManager into seeing there's wifi available
which it then connects to.
I did not test switching back to Upstart, however I am using
xfce4-power-manager as mentioned in Comment 7.
If I close the lid, wifi does
In kernel 3.19.0-26 the connection was reestablished sometimes (could not
reproduce a pattern)
in kernel 3.19.0-27 (updated today) the situation is as initially described.
The connection does not get reestablished after a resume, regardless of wheter
a. I previously disconnect and reconnect in
I am experiencing the problem as originally described.
I have discovered that using the b43 driver module instead of wl fixes
this problem: sudo rmmod wl ; sudo modprobe b43
However, this also makes any 5GHz networks disappear.
This makes me believe there is a bug in the wl module.
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You
I'm having kinda the same problem. After suspend at work and resume after one
hour at home, NM applet won't show my home networks at all - so no auto
connection, of course.
If I do enable/disable wifi or try to connect to one of work wifi AP (which of
course is not there but is still in the
I have the same log as #4 which is definitely a different bug. The
network manager wakes prematurely before suspending causing it not to
wake when resuming. I experienced this on lubuntu 15.04 but could not
replicate it on Ubuntu 15.04. I isolated the problem down to xfce4
-power-manager which is
Additional observation:
Somehow upgrading the kernel did not happen. So the kernel stayed
3.19.0.15 for a while.
Other upgrades went fine. So for the last few days, I did not observe the
phenomenon on this particular machine.
(Others, where the kernel war upgraded to 3.19.0.20 had the issue
I'm not sure if this is the same bug, but after upgrading to 15.04, I
have to sudo systemctl restart NetworkManager to get back my network
interfaces after a long suspend. If I test a short suspend/resume cycle,
like a couple seconds, it works fine, but when I open my laptop in the
morning I have
(And I'm on a Thinkpad X200, 3.13.0-39-generic, networkmanager
0.9.10.0-4ubuntu15.1)
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Title:
network-manager does not autoconnect to wifi
Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: network-manager (Ubuntu)
Status: New = Confirmed
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** Changed in: network-manager (Ubuntu)
Importance: Undecided = Medium
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Title:
network-manager does not autoconnect to wifi network after
Just found this in /var/log/pm-suspend.log:
Running hook /usr/lib/pm-utils/sleep.d/60_wpa_supplicant suspend suspend:
Failed to connect to non-global ctrl_ifname: (null) error: No such file or
directory
/usr/lib/pm-utils/sleep.d/60_wpa_supplicant suspend suspend: success.
full log attached.
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