Maintenance for the week of March 25:
• [COMPLETE] ESO Store and Account System for maintenance – March 28, 9:00AM EDT (13:00 UTC) - 12:00PM EDT (16:00 UTC)
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.