Open AD Sites & Services on each DC. Drill down to the NTDS Settings object underneath each server, right-click on each connection and select "Replicate now", see if it errors out or indicates completion.
Additionally, run repadmin /replsum from the command line on each DC, as well as 'repadmin /syncall <DC FQDN> <DOMAIN DN>'
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by: dooleydogPosted on 2008-03-31 at 11:19:04ID: 21247764
i would try to restart the FRS in services.
If that doesn't take care of the problem, then you may have a FRS version mismatch or a schema mismatch.
here are some steps to try.
Good Luck,
Procedures for Troubleshooting FRS Event 13508 without Event 13509
Examine the FRS event ID 13508 to determine the machine that FRS has been unable to communicate with.
Determine whether the remote machine is working properly, and verify that FRS is running on it. Type the following command at a command prompt on the computer that logged the FRS event ID 13508 and press ENTER:
ntfrsutl version <FQDN of remote domain controller>
If this fails, check network connectivity by using the Ping command to ping the fully qualified domain name (FQDN) of the remote domain controller from the computer that logged the FRS event ID 13508. If this fails, then troubleshoot as a DNS or TCP/IP issue. If it succeeds, confirm that the FRS service is started on the remote domain controller.
Determine whether FRS has ever been able to communicate with the remote computer by looking for FRS event ID 13509 in the event log and see if the FRS problem correlates to recent change management to networking, firewalls, DNS configuration, or Active Directory infrastructure.
Determine whether anything between the two machines is capable of blocking RPC traffic, such as a firewall or router.
Confirm that Active Directory replication is working. For more information about troubleshooting Active Directory replication, see Troubleshooting Active Directory Replication Problems in this guide.