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The RPC server is unavailable

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8 replies

by chrissaw 1 view

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Hi there,
I have a Forest containing 3 DC in one domain.
One of these DC is at another site.

When I try to replicate DC1 or DC2 with DC3(the external one), I receive this error message.
"The RPC server is unavailable."

Any help will be appreciated.
Christian

8 replies

by rawright

Check to see that the RPC Service is running on the remote DC, and that the RPC Locator Service is running on the local machines. They should start automatically by default, but something may have caused them to shut down or stop responding.

by chrissaw

It was effectively an RPC problem but a setting conflict between remote site and main site. The remote site was set to communicate through IP protocol while main site was set to use RPC. I modify the remote site configuration and everything is now correct.
Thank's to give me that insight.

by chrissaw

Both services are up and running on all DCs.
Is there a possibility that one of those services is running but corrupted?

Thank's

by ojt

Verify that your DNS clients are properly configured, and that your DNS server has got its service records for your AD zone. Try to run the "dcdiag" tool in a command window on the DC (dcdiag /? to view options). This might tell you where the problem is.

by shawn

Another thng to check is to see whether or not the time is out of sync between your remote server and the 2 local servers. Replication cannot occur when time is out of sync, because AD uses timestamps to help resolve conflicts.

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