I had to move a local vSphere host to a colo facility, while leaving vCenter here at the office. I mapped an external IP address on port 443 to it and can see it with the vSphere client in stand-alone mode. Trying to add it to vCenter doesn't work; it seems to see it but then times out when trying to complete the importing. I'm assuming I need to open more ports for vCenter's use, or is this something else I'm missing?
vSphere 5.5.0 and vCenter 5.5.0 build 2001466