I actually wrote some documentation on this for my team, when I encountered the issue. Then I lost it. Hence setting up a website to store everything I come across, on!
This issue came about myself after I upgraded the version of VROPS I had installed and I couldn’t for the life of me understand why the agent simply refused to connect. So after much messing around, I found the following vmware KB:
Yep, they decided to leave out the necessary ports allowed through the firewall on the appliance. Thanks vmware!
If you aren’t comfortable using VI – which for the uninitiated, can be a nightmare, you can take a copy of the file (download it/FTP it off etc) and make the changes, then re-upload it.
Don’t forget the restart the firewall service – also when I rebooted the VROPs server once, it lost the settings, so rookie mistake or something more…sinister… Not sure, don’t care, just had to do this again! 😉