Authentication Failed

[zoboroh1234]

"Authentication failed! Game client terminated. Check is your Buddy Auth keys valid and check your sessions."

This is happening quite a lot since the recent update. It is entirely random, it will close the archeage client, and usually I can start it again without issue, but sometimes it'll crash Archebuddy and archeage will be open saying, 'The Server is currently busy.'

 

[Dreadnought55]

I too get this now, followed by "Client initialization timeout" at the end.
Sometimes I get "server is busy" message and whole AB program disappears, sometimes it just closes the AA session it failed to load and AB still running.
Happened today like 6-7 times. Didn't have to restart computer to make it work, it just worked after like 20-30 min. Then happened again some hours later.
A close of AB then re-open seems to have solved it for now.