Hello,
I am in the process of migrating to SCOM 2012 from 2007 R2 CU7. I installed a new Windows Server 2008 R2 with SQL 2008 R2 SP2 and Installed SCOM 2007 R2 CU7 as a secondary MS. I restored the key and did a PromoteRMS. The new server became the RMS and the old server was a secondary MS. I deleted the old server from SCOM and had only the new Server as the RMS with no secondary MS. I un-installed SCOM on the old server and now the new server is listed as a Connection Server and the old server is listed as the RMS. When I try to do a PromoteRMS again, it fails to connect to the management group. How can I force the new server to become the RMS without the old RMS in the picture?