This doesn't make any sense to me as to why 1 of my 4 accounts running SoD cannot log in to any server on the list due to an "unknown error while attempting to connect" message.
The account logs into titanium fine but will not get past the server select screen with SoD.
This is the only account out of my 4 that can't login with the SoD client. This just randomly happened a cpl hours ago.
PM Gaeorn on the EQEmulator forums. He should be able to look into your issue. I had the same issue. We're not exactly sure why it does that, and this would probably be enough information to fix it.