Hi
We have a Server 2008R2 based Direct Access setup using Forefront UAG 2010.
A couple of days ago it stopped working and we are having trouble establishing why and how to get it back online.
We have a mixed environment of windows 7 and 8 clients connecting through Direct access.
It is configured as an edge server with 2 public IPV4 addresses and one on the internal network.
They are able to establish an infrastructure tunnel to the server. They are failing with an error in the direct access logs that corporate connectivity is not working and cannot access some resources due to an auth failure.
In my troubleshooting I have found NLtest /dsgetdc: /force fails to return any domain controllers.
We are also getting errors in the Security event log on the client machines with event ID: 4653, 4654 and 4984.
We have added domain controllers to our NRPT and it made no difference.
All DNS/Domain controllers have IPv6 addresses matching the range of the one on the UAG server.
All name servers are listed correctly in DNS and local resolution is all functional with all local machines able to access domain controllers, name servers and DHCP.
Can anyone recommend next steps to get this going again? Happy to send any logs needed.
Swearing at the UAG server has made no difference either.