My kernel: 

Linux x61s 3.18.2-2-ARCH #1 SMP PREEMPT Fri Jan 9 07:23:08 CET 2015 i686 GNU/Linux
Linux x61s 3.18.4-1-ARCH #1 SMP PREEMPT Tue Jan 27 21:01:00 CET 2015 i686 GNU/Linux

My network controller:

02:00.0 Network controller: Intel Corporation Centrino Advanced-N 6200 (rev 35)


My connection randomly disconnects. [iwlwifi.log]
[Symptom was the same about a year ago.]

I cannot turn off and turn on the wlan0 interface [ifconfig wlan0 up]


More details: https://bugzilla.kernel.org/show_bug.cgi?id=92231

Thank in advance