I have 2012 server joined to a sbs 2011 domain. I am trying to set up Remote Desktop gateway. I have several apps published. I changed the gateway port from 443 to 444. Everything works fine inside the network. The problem I have is from outside. We have a single external IP address. The router forwards 443 traffic to our Exchange server which is on a different box (that's why I changed RDG to 444). Anyway, I can get to the web page which shows all the apps. But when I click on an app, I get an error that states that there is a certificate problem. When I click View Certificate, it brings up the cert from our Exchange server. This tells me that at some point in the transaction, it is referring back to port 443 even though it is supposed to be 444. So my question is - is there somewhere other than RD Gateway Manager where I need to reconfigure this port to show 444?
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