I have a forefront 2010 box sitting in my DMZ this uses a 172.x.x.x address.
Outside -> Cisco ASA -> TMG 2010 DMZ -> Same Cisco ASA -> Internal
Essentially a 3 leg with TMG in the DMZ
I have successfully setup and tested OWA/ActiveSync externally no problem.
Getting ExRCA failed to obtain an Autodiscover XML response. I can see
Status: 12202 Forefront TMG denied the specified Uniform Resource Locator (URL).
The problem I am having is setting up auto discover/OA as I can only setup one type of Authentication on my HTTPS listener and only the 1 HTTPS listener.
Any ideas on how to get around this.
This is also preventing my autodiscover from working.