ACTION:
+ Once the Active Directory replication stopped automatically you were trying to force the replication between two DCs.
RESULT:
+ It was failing with the error “RPC server unavailable”.
CAUSE:
+ The DCs were not able to do the name resolution.
RESOLUTION:
+ First we updated the DNS.exe to the latest version and it didn’t resolve the issue.
+ Then we went ahead and removed the WINS checkbox from the DNS server properties. This didn’t resolve the issue.
+ After this we tried converting the zone to standard primary zone and this didn’t resolve the issue as well.
+ Then we deleted the dot zone from the DNS server. After this replication worked. Then we converted the zone back to AD integrated.
