We recommend users to do two things to get Xbox automatic sign-in working.
1. Close and restart your GeForce NOW app
2. Browse to the GeForce NOW app > Settings > Connections. DISCONECT your Xbox account and then RECONNECT.
2. Browse to the GeForce NOW app > Settings > Connections. DISCONECT your Xbox account and then RECONNECT.
When this is complete, launch an Xbox game and see if Xbox automatic sign-in works. If it does not work, please send in-app Feedback.