TMG 2010 Version 7.0.7734.100
Windows Server 208 R2
I have an internal website, within a seperate trusted forest. The proxy bypass works without issue for users in headquarters and users are able to access the site without getting prompted for user credentials, as it should. For our remote locations (different subnets connected via MPLS), if the address is listed in the bypass proxy in IE (versions 8 and 9), the user receives "page cannot be dispalyed". If the address is removed from the proxy bypass, the user can access the site after getting prompted for and entering their domain user credentials.
The remote site subnets are all variations of 192.168.x.x /24. The internal network configurations on the TMG has all private subnets(default) including the range 128.0.0.0 - 223.255.255.255.
How can I get this to work for these remote sites without going through the TMG? Why isn't the proxy bypass working as it should?
Any help is much appreciated!