Maintenance for the week of March 16:
• PC/Mac: No maintenance – March 16
• ESO Store and Account System for maintenance – March 18, 6:00AM EDT (10:00 UTC) - 4:00PM EDT (20:00 UTC)
After trying all of the various posted fixes and nothing working, I deleted the game and am trying a fresh install. Should be finished downloading the client in about 21 hours. Will never buy another game that's not in a box.