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#1 2012-07-11 18:12:13

Fingel
Member
Registered: 2009-02-28
Posts: 89

Wireless stops working - Centrino Ultimate-N / iwlwifi

Hello,
I've been experiencing a very annoying problem with my wireless card on the Lenovo W510. Wireless will just stop working unexpectedly and randomly. Network manager shows there is still a connection, but it is not possible to send/recieve any traffic. Output from dmesg when it happens:

[ 2649.797590] iwlwifi 0000:03:00.0: Queue 2 stuck for 2000 ms.
[ 2649.797594] iwlwifi 0000:03:00.0: Current SW read_ptr 215 write_ptr 226
[ 2649.797815] iwlwifi 0000:03:00.0: Current HW read_ptr 215 write_ptr 226
[ 2649.797820] iwlwifi 0000:03:00.0: On demand firmware reload
[ 2649.799795] ieee80211 phy0: Hardware restart was requested

I've googled the problem and it there are some hits, some from years ago... and many which were resolved, which points to the fact that this might be a side effect of a bug somewhere else.
Anyone else having issues?
Card is a Centrino Ultimate-N, on an Intel i7.
kernel is 3.4.4-2-ARCH x86_64

Thank you.

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#2 2012-07-12 23:02:30

invsblduck
Member
Registered: 2012-07-12
Posts: 4

Re: Wireless stops working - Centrino Ultimate-N / iwlwifi

I haven't researched this yet (found this post by accident looking for something else), but I have the EXACT same issue-

Same chip, same kernel, same message, same problem.

Been dealing with it for the last 6 months however...I'll post back here if I do take the time to look into it and find anything.

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#3 2012-07-12 23:30:27

don_crissti
Member
Registered: 2009-03-17
Posts: 35

Re: Wireless stops working - Centrino Ultimate-N / iwlwifi

Hmm.. you could try one (or both) of the following in your modeprobe.conf:

options iwlwifi wd_disable=1
options iwlwifi 11n_disable=1

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#4 2012-07-13 22:45:51

michalmiddleton
Member
Registered: 2012-07-13
Posts: 4

Re: Wireless stops working - Centrino Ultimate-N / iwlwifi

I am having the same issue.

Intel Centrino 6200
stock kernel 3.4.4-2-ARCH #1 SMP PREEMPT
Dell XPS 15. I am gonna try those parameters for iwlwifi module

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#5 2012-07-14 15:31:17

michalmiddleton
Member
Registered: 2012-07-13
Posts: 4

Re: Wireless stops working - Centrino Ultimate-N / iwlwifi

I left my laptop running over the night and it seems like

 options iwlwifi wd_disable=1 

helped!
Dmesg is clean and wifi still works!


I don't usually let my laptop run when it's not needed so there are chances I simply haven't noticed before but I think this came with the latest version of stock kernel (3.4.4-2-ARCH x86_64). I also noticed there was linux-firmware update recently too.

Thanks don_crissti, you saved me some googling!

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