Maintenance for the week of November 25:
• [COMPLETE] Xbox: NA and EU megaservers for maintenance – November 27, 6:00AM EST (11:00 UTC) - 9:00AM EST (14:00 UTC)
• [COMPLETE] PlayStation®: NA and EU megaservers for maintenance – November 27, 6:00AM EST (11:00 UTC) - 9:00AM EST (14:00 UTC)
You could be running into a connection issue preventing you from logging into ESO. If you continue to receive the message "Unable to connect to game server" when logging in you can go through the troubleshooting steps in the help article linked below.