Maintenance for the week of April 22:
• [COMPLETE] PC/Mac: NA and EU megaservers for patch maintenance – April 22, 4:00AM EDT (08:00 UTC) - 9:00AM EDT (13:00 UTC)
• Xbox: NA and EU megaservers for patch maintenance – April 24, 6:00AM EDT (10:00 UTC) - 12:00PM EDT (16:00 UTC)
• PlayStation®: NA and EU megaservers for patch maintenance – April 24, 6:00AM EDT (10:00 UTC) - 12:00PM EDT (16:00 UTC)
I assume you have power cycled your machine. While that is always the first step of tech support many overlook it.
Zos will respond with a link to something about making sure certain ports are open and that ESOP is on the list of exceptions for your anti virus as their next step. I do not have the link but you can probably google it.
Good luck. Also, I do not expect many responses from Zos themselves until next week since they are pretty much out of the office.