Hi all,
I have a really strange issue. One of my customer site has a domain controller and additional domain controller in the Head Office. Branch offices has RODCs. There are 6 sites with head office and all the subnets are properly configured.
Head office and branch offices are connected through a VPN connection. VPN doesn’t have the internet facility. Therefore servers and clients configured using “route add” for the VPN connection. IPv4 properties window has the internet router as the default gateway.
Anyway, when VPN connection is up and running everything is ok. But, when VPN connection is down all the branch offices are unable to get even printouts from the shared printers and unable to access shared folders. This is really strange because when a user browsing the LAN by typing IP address there’s no need for DNS and gateway as well.
If we take a look at one branch office, their RODC has self IP address for the “Preferred DNS server” and head office DNS server IPs for the second and third. Clients are configured to use local RODC server IP address for the “Preferred DNS server”, Head office DNS server IPs for second and third, ISP DNS server IPs respectively.
When the connection to the writable DC is down, RODC is unable to login itself. It says “There are no logon servers available to service the logon request”. But we have added domain administrator to the “Allowed RODC Password Replication Group”.
Please advise me on this regard and instruct me how to resolve above issues.
Thank you,
Thisaru.