Comment 5 for bug 2060193

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AceLan Kao (acelankao) wrote :

This kind of iwlwifi microcode crashes usually results from the router(Access Point).
Have you tried to cold reboot your AP?

From other discussion I found on the net, the issue might be related to 40MHz channel, you probably could try the below setting.
   options cfg80211 cfg80211_disable_40mhz_24ghz=Y