I've noticed a number of people having "unexpected" problems with their Forefront TMG firewall installations. While I expect the unexpected in Beta products, there are the "expected" unexpected. What do I mean by that? The unexpected occurrences are actually described in many cases in the TMG Beta 2 release notes.
Check out the release notes at http://technet.microsoft.com/en-us/library/dd440976.aspx before installing the Forefront TMG firewall software. It will save you a lot of time and make your TMG firewall testing experience a much happier one 🙂
Thomas W Shinder, M.D., MCSE
Sr. Consultant / Technical Writer