My Nokia Lumia 928 has the following firmware:
OS Version: 8.0.10517.150
Firmware revision number: 3051.40000.1352.0058
Radio software version: 2.0.092073.3
Problem description: For about a month now, the phone stops using WiFi after few minutes (5 minutes to 20 minutes) of not using the phone. The WiFi connection is still "connected" and within few feet of the router in a straight line - no obstacles. It instead tries in vain to use WiFi for several seconds and then uses cellular data. Some apps just bail because of the delay without giving a chance to cellular data switch. I found it more predictable to turn off WiFi radio and then turn it back on and use the apps. Needless to say it is very annoying and slow just to get a small transaction out the way.
It used to work well until a month ago.
At the same time there are many other WiFi devices which all work flawlessly with the same router.
Does any one have same situation?
Any recommendations? Please help.