Question Wi-Fi trouble on CM 11-M7

Hi all, after flashing CM 11 I've been having some trouble with the wireless connection on my phone. After being connected for a while it disconnects and it the scan fails and it won't connect again. To get it to work I have to turn the Wi-Fi off and on again, then it connects. Sometimes turning it off locks my phone and then it reboots after a couple of seconds. I found some relevant dmesg output (http://pastebin.com/vwMKskZy), but I have no idea what it means.

Is this a common CM issue, or is it specific to my phone?