Grab the remote, using the directional buttons on your remote, enter the following sequence of buttons to pull up a secret menu: Up, Up, Down, Down, Left, Right, Left, Right, Up, Up, Up, Up, Up, Up.
Choose 'sign out' or 'deactivate'. Log back in.
This worked for me after using the factory reset or resetting all apps multiple times - only to gain a few hours of uninterrupted play.