Exchange 2010 SP1 "RPC can't be started because of the EMSMDB interface is already registered by

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Chris1001

Hello everyone,

I upgraded Exchange 2010 to SP1 and now the RPC Client access will not start and give me an error in the event log of " The Microsoft Exchange RPC service can't be started because the EMSMDB interface is already registered by another process "

I have tried setting the port for the MSExchangeRPC and this has not helped. OWA works perfectly.

Thanks in advance
 
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Chris1001

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\MSExchangeRPC\ParametersSystem\TCP/IP Port in the registry
 
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Evan Liu

Hi,

As you have changed the port for the MSExchangeRPC. Please make sure the port (your MSExchangeRPC using now) is enabled on the firewall.

Note: Microsoft recommends you set this to a unique value between 59531 and 60554 and use the same value on all CAS in any one AD site.

References:

Configuring Static RPC Ports on an Exchange 2010 Client Access Server(please follow this document to check whether the port has been changed)

http://social.technet.microsoft.com/wiki/contents/articles/configuring-static-rpc-ports-on-an-exchange-2010-client-access-server.aspx

Exchange Network Port Reference

http://technet.microsoft.com/en-us/library/bb331973.aspx

If the problem persists, please feel free to let me know.

Evan

 
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