xora.layonara.com is the actual DNS name of the server. west.layonara.com and central.layonara.com also work, with attention to the proper port number.
We quietly disabled the auto-portal again after we started to have server locking/crashing problems coincident with cross-server portaling again. We had hoped that with the server character vault local to the game server and not on a network drive, we'd not have the same problems as whe had in the past. However, that turned out to not be the case.
This is not a bug.