DC trying to enter Solaris Temple lvl 2

I am unable to progress as when I try to enter The Solaris Temple Level 2 I get the error:
An Unexpected Disconnection Occured

Cant progress any of the campaign as a result and constant DC.

Tried restarting, VPN, different servers - all the same result.

Im playing on Steam client.

Resolved after about 50 instance resets.