Unable to Login to or Forget a Network My Android tablet worked fine up until a couple of months ago.  Now I cannot use internet on it.  It is not possible to forget a WiFi network.  It will not allow me to add a new network (5GHz for example).  If I enter the password for the valid network it 'sees' it comes back with 'authentication problem'.  The password is correct.  All other devices in the house fine including iPads, iPhones, Windows computers.
Do I bin the Android crap?
Factory Reset apparently is the answer.  Came up straight away.  Having to blast the tablet every time you want to use the internet is not convenient.