Sorry to ask this silly question...
I did read the changelog, but could it be that there have been done any changings on WiFi and/or MobileRadio?
My P7a does play mad since this update. WiFi settings I had to reset to get a connection to my main AP. A other OpenWRT-AP I can't connect to anymore. (It kicks device out before connection is done. (connection from PC works!)
And because this was still not enough, my Mobile Connection got interrupted and didn't come back on like normal. I had to reboot the phone. Strange was that I found a config located in the carrier settings to activate Voice over WiFi. And it was activated. I never have seen this before. After reboot it was not there anymore.
Don't know where to search for the cause.