I’ve checked the settings and my iPhone 5S is connected to my home network. The phone has an IP address with the correct DNS settings. My laptops and server go out to the net with no problem.

So WHY does my phone decide to ignore the WiFi connection and use 3G (which sometimes flips over to 4G) and back again? This is rapidly using up my DATA plan allowance! I then can’t use 3G/4G for the rest of the month – rendering my iPhone 5S totally useless!

Anyone with any ideas?

Best wishes