If anyone can answer this I would be extremely grateful.
Since first buying a Nexus 7 for my wife it has been excellent if not getting slower but working fine until a couple of days ago when it decided not to go online and to put a padlock next to our home hub icon. I have done a factory reset not once but three times in the hope that it would take it right back to when it had no wi-fi set up on it at all. It displays about six or seven other wi-fi icons which also have the padlock showing next to each one. There is also one "BTwifi with Fon" whatever that means but that is clear and able to use but it isn't a secure connection so I don't use it.
My Home Hub Wifi is showing but each time I try to connect it comes up with "Failure to connect".
So my big question is a/ why all of a sudden am I locked out, and b/ how do I clear all the padlocks especially on my chosen home hub ?