We currently have a 3 sites with a DC at each site.
HQ - PDC
Branch Office - GC
Datacenter - GC
Due to a subnet conflict at the "Datacenter" between an existing customer and the "Branch Office," we are using a Double NAT between them. This is causing DNS resolution issues between those 2 sites.
We have configured AD Sites and Services to only replicate between "HQ" and "Branch Office," and between "HQ" and "Datacenter," and we have removed replication between "Datacenter" and the "Branch Office" as DNS resolution cannot work between them.
However, on the "Datacenter" DC we are still receiving Events 1789, 1865 and 1311, referencing the "Branch Office" DC not communicating.
When we run Repadmin /syncall / adep We receive Error 1722, as it is still trying to sync with the "Branch Office" DC.
Any suggestions would be greatly appreciated.