Broke SEPM when changing computer name

So we're upgraded our Windows Server box that hosts SEPM and an ESRI License Manager. We named both boxes the same on our network which of course caused collisions for a while. The ESRI manager was more important, so we swapped it over first, and since we needed people to be able to use it, I quickly changed the name of the old machine to machineold.domain.com and the new machine is machine.domain.com. So the ESRI software works great no problem, but unfortunately, I didn't think and didn't do the proper backups on SEPM. Now I cannot login to the console at all from web or on the computer. It just says it cannot connect. So I attempted the reconfiguration and it can't connect to the database. Great. So I renamed the box off network and just put on a workgroup. So it now has the old name. It still won't let me login, says it can't connect. I've tried just about everything and can't figure it out. I just need the DB backup and a "Disaster Recovery" file so i can get SEPM up and running on the new box. This is version 12. Is there anything I can do at this point? Or am I SOL?