Background:
Forefront TMG 2010 on Server 2008 R2
SharePoint 2010 on Server 2008 R2 (different box)
Client had a working setup on ISA 2006 box but they called me one morning after they found it laying dead in the rack. Tried to find the backups but they appear to have left with the last guy who worked for them.
I built up a new box with TMG 2010 and got it dialed in to their SharePoint. All (navigation, button clicks, etc.) work as expected. However, they have several forms that they use: one customized list form and one straight-up browser based form
(no code). From inside the network the forms operate exactly as expected. Once someone opens the form from an external network the TMG logs:
"12210 An Internet Server API (ISAPI) filter has finished handling the request, InfoPath Forms Services"
Wireshark shows: HTTP/1.1 401 Unauthorized , NTLMSSP_CHALLENGE
I get the same "HTTP/1.1 302 Moved Temporarily" in TMG logging as noted in this post.
Anyone have any ideas? The post I linked to did not suggest a specific fix.
Thanks,
Chris