I've made the move from ITMS 7.1 to 7.5 SP1 (on our DEV system). For the most part the upgrade went smooth. My site servers and agents have all upgraded. I've got agent communication now running over HTTPS and site server codebases migrated to HTTPS. I also have Cloud Enabled Management (CEM) agent connectivity working with a few exceptions.
When an Internernet agent (Windows 7 x64) is connected to SMP over CEM, the agent is
1) unable to register with a task server
2) Unable to download packages from the PS I assigned to the Default Internet Site.
In the agent logs, it appears the agent is attempting to register with the TS and PS using the internal FQDN which of course it cannot do. My understanding is that all communication would be tunneled via the Internet Gateway. Even if the agent could resolve the name of the internal server to an IP, it wouldn't do any good since those servers are on the inside network. Its possible the agent logs show the internal name even though the communication itself is being tunneled via the gateway. however, since its not working, I don't think that is the case.
I found one KB on an earlier version of 7.5 which seems to explain this issue but it was suposedly "fixed" although I'm not sure what that fix entaled.
For those that have made the jump to 7.5 with CEM, did you run into this issue?
Joe