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Problems with replication

I am trying to run DFS between 2 file servers , the third server is DC

Affected replicated folders: All replicated folders on this server. 
  Description: DFS Replication cannot replicate with partner WILSON due to a communication error. This error can occur if the host is unreachable, or if the DFS Replication service is not running on the server. The DFS Replication service used partner DNS name wilson.samhjalp.ic, IP address xxx.xxx.xxx.xxx, and WINS address wilson but failed with error ID: 1722 (The RPC server is unavailable.). Event ID: 5008 

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The replication service is running on both fileservers
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3 Solutions
Sajid Shaik MSr. System AdminCommented:
try this solution


all the best
The RPC server unavailable or too busy errors can occur for the following reasons:

• DNS problems
• Time synchronization problem between DCs
• RPC service is not running

Based on your description, after those EVENT 5014, 5008, 5002, the replication starts again. I suspect the issue is related with an unstable WAN connection. You can capture the network trace to determine whether the cause of the problem is at the network layer. To examine the TCP ports that the DFS Replication service is using on replication partners, run the command: NETSTAT –ANOBP TCP in a Command Prompt windows.

Meanwhile, I suggest you check the DFS Replication debug logs, which are located in the %systemroot%\debug folder.
soffcecManagerAuthor Commented:
The RPC server is unavailable - thts my problem - my ISP says there is no block in the router.

20130512 12:22:54.268 3272 INCO  2265 [WARN] InConnection::ReConnectAsync Failed to connect, (attempts: 266) connId:{EE5C2FA1-C489-4E0D-A905-27B1F754AF46} Error:
+	[Error:9027(0x2343) DownstreamTransport::EstablishConnection downstreamtransport.cpp:3610 3272 C523 A failure was reported by the remote partner]
+	[Error:9027(0x2343) DownstreamTransport::EstablishConnection downstreamtransport.cpp:3543 3272 C522 A failure was reported by the remote partner]
+	[Error:1722(0x6ba) DownstreamTransport::EstablishConnection downstreamtransport.cpp:3543 3272 W521 The RPC server is unavailable.]

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What sort of connection exists between the two DFS servers?
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soffcecManagerAuthor Commented:
ADSL Annex A  (about 2 down and 0,8 up)  and ADSL Annex m (about 6 down and 2 up)
Then Domain controller is on Fiber 100 down 100 up.
At this time we are not using VPN, but will if this is not going to work.
Does that mean that both locations have a connection to the Internet, but there's no direct physical link between them?  If that's the case, you'll almost certainly need a VPN connection.
soffcecManagerAuthor Commented:
Now I have made VPN connection between the file servers but the domain controller is still on his own external ip.

But I still get error lioke this one:
Cannot connect to reporting DCOM server.  
  Description: The RPC server is unavailable.  
  Last occurred: 21. maí 2013 at 20:44:56 (GMT0:00)
  Suggested action: Verify that Windows Server 2003 R2 is installed on the server and that RPC traffic is not blocked by firewalls or port filtering. For information about troubleshooting RPC issues see RPC KB 839880
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