I've tried to configure RDS html5 solution in 2016 Server, and in internal network works great!
After that, I use TMG 2010 to publish from internet, but when I click to open a App one error message are showed, talking "connection was lost.." So... I check TMG tracing logs and found this error:
Failed Connection Attempt Log type: Web Proxy (Reverse) Status: 64 The specified network name is no longer available. Rule: RDSGateway Source: External (177.3.222.89:12566) Destination: Local Host (vm2016.domain.local 192.168.0.122:443) Request: GET https://192.168.0.122:443/remoteDesktopGateway?CorId=%7Be1cfa7cd-c55a-481a-a257-cc4bb7230000%7D&ConId=%7B7111bfed-bccb-43ff-9772-71851a6cc5e1%7D&ClGen=HTML%3D1&ClBld=Type%3DRdClient%3B%20Build%3Dprivate&AuthS=SSPI_NTLM Filter information: Req ID: 0aa91cf7; Compression: client=No, server=No, compress rate=0% decompress rate=0% Protocol: https User: anonymous
I used the same rule for RDS 2012 R2. would something more be needed?
Douglas Filipe http://douglasfilipe.wordpress.com