Maintenance for the week of November 17:
• [COMPLETE] ESO Store and Account System for maintenance – November 17, 6:00AM EST (11:00 UTC) - 4:00PM EST (21:00 UTC)
• Xbox: NA and EU megaservers for maintenance – November 19, 4:00AM EST (9:00 UTC) - 12:00PM EST (17:00 UTC) https://forums.elderscrollsonline.com/en/discussion/685477
Its your internet connection most likely. Reboot all your modems and routers and what not and try again. If that doesnt help then contact ZOS for help because something is wonky and they need to fix it.