So I upgraded this site to 7.5 about a month ago with very few issues. I have now installed the System/Session Manager Servers. When I did this I demoted the existing servers and made them member servers. All went well with this and I was able to get all components registered back into UCM using the new credentials and new Session Manager server as my primary Security Server. The problem I'm having is when I launch Element Manager for my main site in UCM sometimes the page opens and some times it doesn't. I'm trying to migrate my users from EM to Subscriber Manager and it errors out when I do it also. Problem it's not consistent. Some times it loads the page and some times it doesn't. I click the link to migrate my users and it will migrate a few but never all of them. Then they never show up in Sub Mgr when I do a sync. I have rebooted the SS and the System and Session Manager Servers. Same issue. Any ideas? It's wearing me down.