Hi!
I just upgraded to a new version of the Android app (1.4.10). It stopped being able to connect to the controller: always says that I should check my IP and port. Logging in through regular web works just fine.
I tried to delete the site and manually enter it again – no effect, reboot the phone, the controller – same thing.
I see a similar issue. My app automatically updated early this morning and it will not connect. The message I get is “Unable to connect to [Site Name]”.