Since the 4.5 update (220.127.116.11 already) the android layer has long forgotten connectivity issues on my X10II.
OS VERSION: 18.104.22.168/18
HARDWARE: xperia 10 II
UI LANGUAGE: german
when the network changes, android loses network, be it a browser, chat apps or other. It happens when 4G is lost shortly and reconnects or when leaving a wifi into 4G.
it seems not to happen reproducibly when switching from mobile to wifi or after calls when the phone reconnects from 2G to 4G.
- connected to a wifi, 4G active
- shut off wifi or leave its range
- try using an android app which needs internet connection
no connection possible unless android is restarted manually. The disconnected state persists for hours, not only for some minutes. I don’t think there is a mechanism which tries to rebuild connectivity or maybe the system just doesn’t detect the issue.