These hosts and vCloud were recently upgraded from 5.0 to 5.5 (1.5.2 to 5.5 for vCloud).
Passwords have not changed.
During this process the hosts were unprepared and prepared. I assume this installs the vCloud agent, but correct me if I am wrong.
Unfortunately the errors have fallen off the logs at this point and I am not in a position to try it again (off this week).
I will see if someone in the office can try a media upload for me and generate some fresh logs for me.
Thanks!