I recently had to have my SAN Certificate re-keyed due to the fact that I am bringing a new Exchange 2010 server online to replace our Exchange 2003 server. I have imported the re-keyed certificate into the TMG server but when I select the "Select Certificate" button in the web listener properties to select the new certificate I get the following error:
"One or more array members is not responding. To select a certificate, Forefront TMG services must be running on all the servers in the array."
This is our only TMG server and as far as I can tell all services are running on this server that should be. Any help is appreciated.