If some of you recently tried to publish RDP protocol through TMG server, and suddenly lost the possibility to perform TS connections to the TMG server itself, you may find this post useful!
Check it out at http://blogs.technet.com/b/isablog/archive/2014/03/24/tmg-2010-you-cannot-remotely-connect-to-tmg-server-when-it-s-publishing-rdp-protocol.aspx