Hi all,
I know that this Topic has been asked several times, I think i got something simmilar as it was allready discussed.
I have a routed Network with Two TMG Firewall holding a VPN connection. I did the setup several times now, and I allways ended up with a non working RPC Connection after several hours working.
For Example:
I did a complete new setup, the TMG on the main site is a virtual Server(4 Interfaces, Internal, External, DMZ, VPN(External)) on HyperV, the remote server is a real box (2 Interfaces)
Directly after I did the setup, I was able to join computers and also a RODC on the remote site. It was slow but it worked.
One day after in the morning the RPC connection problem was back. I can even not connect to DNS Service on the main DC by using a server on the remote site. Replication stopped working and so on. When I have a look into the protocoll I can see a lot of traffic from main DC to RODC over the VPN.
I can do a ping and Client computers can logon on the remote site (connection to main DC and not RODC as logonserver)
In the protocol I can see a lot of unknown traffic all with ports above 50000 where no rule is working for and it tells me the not SYN-package has been dropped and the computer who has send it(Main DC)and the computer has no connection to TMG.
Any ideas to get rid of that?