Cannot datacenter travel

1. logged in and got to character selection
2. right clicked character and selected "visit another data center"
3. clicked "select world"
4. A black screen with error 2021 "world data could not be obtained. Please try logging in later" shows up
5. Game resets back to login screen

Reproducible 100% of the time. No changes after reinstall, restarting computer. Happens at all times of the day at all days of the week over the past two months.