I have 3 sites: site a, site b site c
I have 3 W2K8 R2 DC's: DC-A in site A, DC-B in Site B, DC-C in Site C.
Windows 2008 Domain Functional Level. All Windows 2003 DC have been demoted.
I recently deployed new Windows 2008 R2 DC's in all three sites. I started with Site A and everything worked perfectly. Next, I setup DC-B in site B and everything is working properly. Active Directory and FRS is replicating properly. Next, I setup DC-C in Site C. Active Directory is replicating correctly but FRS is failing. I am also missing my Netlogon share when typing net share. I followed this Microsoft KB: http://support.microsoft.com/kb/947022/en-us
but had no success.
I get the Event ID 13508 in the File Replication Service log on DC C. It says
The File Replication Service is having trouble enabling replication from DC-B to DC-C for c:\windows\sysvol\domain using the DNS name DC-B. FRS will keep retrying.
Following are some of the reasons you would see this warning.
 FRS can not correctly resolve the DNS name DC-B from this computer.
 FRS is not running on DC-B.tci.corp.
 The topology information in the Active Directory Domain Services for this replica has not yet replicated to all the Domain Controllers.
This event log message will appear once per connection, After the problem is fixed you will see another event log message indicating that the connection has been established
1. I can ping FQDN and resolve DC-B from DC-C and vise versa.
2. FRS is running on all 3 DC's.
3. RPC is working.
4. Corporate Firewalls between all three sites allow Any-Any.