Samsung Galaxy S2 with Jellybean. Go to our local pub at least twice a week. wi-fi is fine. Today it would not connect. Nothing changed at the pub. The misses with exactly the same phone was spot on. It stated strong signal but the excuse from the phone was "poor signal" I got home and it worked fine. In the pub, I switched off and on. Also took battery out. Can anyone point me to an answer on this one please?