[SOLVED] Spontaneous wifi device disassociation.

Getting your soundcard to work, using Debian on non-i386 hardware, etc

[SOLVED] Spontaneous wifi device disassociation.

Postby edbarx » 2017-02-11 06:55

I would like to know what Broadcom wifi users do when their computer loses connection after a couple of minutes of network inactivilty. The disassociation is recorded in dmesg. Running iwconfig on a broken connection restores it.
Code: Select all
# iwconfig wlan0 essid mycoolessid


Added Later:
I have been given enough information, thanks.
Last edited by edbarx on 2017-02-11 15:30, edited 1 time in total.
Debian == { > 30, 000 packages }; Debian != systemd
The worst infection of all, is a false sense of security!
It is hard to get away from CLI tools.
User avatar
edbarx
 
Posts: 5365
Joined: 2007-07-18 06:19
Location: 35° 50 N, 14 º 35 E

Re: Spontaneous wifi device disassociation.

Postby Thorny » 2017-02-11 13:32

edbarx wrote:I would like to know what Broadcom wifi users do when their computer loses connection after a couple of minutes of network inactivilty. The disassociation is recorded in dmesg.

I suspect that you would increase your chances of getting helpful information by posting which broadcom interface you are using. Even the Debian version might be useful information.

If it one on this Debian Wiki page then it might be related to power management of the card and you might try the solution offered on that page under "Known Issues", "Frequent disconnections can be ..."
https://wiki.debian.org/wl

You could also try searching with the keywords, <substitute whatever the broadcom name is> and "disconnect"
Thorny
 
Posts: 275
Joined: 2011-02-27 13:40

Re: Spontaneous wifi device disassociation.

Postby wizard10000 » 2017-02-11 14:09

edbarx wrote:I would like to know what Broadcom wifi users do when their computer loses connection after a couple of minutes of network inactivilty. The disassociation is recorded in dmesg. Running iwconfig on a broken connection restores it.
Code: Select all
# iwconfig wlan0 essid mycoolessid


Tellya what I've done, Ed - removed the card from the machine, threw it as far as I could and replaced it with an Intel card :mrgreen:

Don't know if that's an option for you but I'm to the point where I just don't mess with them any more - but if that's not an option hopefully modinfo or iw will give you an option you can use to make the card behave; my first thought is one listed in the wl wiki - that turning WLAN power management off might help.

Hope this helps -
we see things not as they are, but as we are.
-- anais nin
User avatar
wizard10000
 
Posts: 1038
Joined: 2011-05-09 20:02
Location: midwestern us

Re: Spontaneous wifi device disassociation.

Postby Head_on_a_Stick » 2017-02-11 15:18

I agree with wizard10000 :)

We could identify the device positively with:
Code: Select all
# update-pciids && lspci -knn | grep -iA2 net

https://wiki.debian.org/HowToIdentifyADevice/PCI
“Such is modern computing: everything simple is made too complicated because it’s easy to fiddle with; everything complicated stays complicated because it’s hard to fix." — Rob Pike

Please read before posting How to report a problem
User avatar
Head_on_a_Stick
 
Posts: 6419
Joined: 2014-06-01 17:46
Location: /dev/chair

Re: Spontaneous wifi device disassociation.

Postby edbarx » 2017-02-11 15:26

Code: Select all
04:00.0 Network controller [0280]: Broadcom Limited BCM43225 802.11b/g/n [14e4:4357] (rev 01)
   Subsystem: Foxconn International, Inc. T77H103.00 Wireless Half-size Mini PCIe Card [105b:e021]
   Kernel driver in use: bcma-pci-bridge
Debian == { > 30, 000 packages }; Debian != systemd
The worst infection of all, is a false sense of security!
It is hard to get away from CLI tools.
User avatar
edbarx
 
Posts: 5365
Joined: 2007-07-18 06:19
Location: 35° 50 N, 14 º 35 E

Re: Spontaneous wifi device disassociation.

Postby wizard10000 » 2017-02-11 15:54

edbarx wrote:
Code: Select all
04:00.0 Network controller [0280]: Broadcom Limited BCM43225 802.11b/g/n [14e4:4357] (rev 01)
   Subsystem: Foxconn International, Inc. T77H103.00 Wireless Half-size Mini PCIe Card [105b:e021]
   Kernel driver in use: bcma-pci-bridge


Just for grins can you

Code: Select all
# modinfo bcma-pci-bridge


There may be some things we can do in /etc/modprobe.d that'd help.

edit: nevermind, marked resolved :)
Last edited by wizard10000 on 2017-02-11 16:04, edited 1 time in total.
we see things not as they are, but as we are.
-- anais nin
User avatar
wizard10000
 
Posts: 1038
Joined: 2011-05-09 20:02
Location: midwestern us

Re: [SOLVED] Spontaneous wifi device disassociation.

Postby Head_on_a_Stick » 2017-02-11 16:04

You could also try switching to the (vendor-supplied) wl driver — some users report a better experience with that.

See https://wiki.debian.org/wl for the method.
“Such is modern computing: everything simple is made too complicated because it’s easy to fiddle with; everything complicated stays complicated because it’s hard to fix." — Rob Pike

Please read before posting How to report a problem
User avatar
Head_on_a_Stick
 
Posts: 6419
Joined: 2014-06-01 17:46
Location: /dev/chair


Return to Hardware

Who is online

Users browsing this forum: No registered users and 3 guests

fashionable