Exchange 2010 RPC Client Access service won’t start

exchange-2010windows-sbs-2011

Exchange 2010 RPC Client Access service won't start after installing SP3 + Update Rollup 10.

Host is SBS Server 2011.

Have tried multiple fixes on the web but without luck:

  • Setting the Microsoft Exchange Information Store service to Automatic(Delayed Start)
  • Setting HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\
    MSExchangeRpc\ParametersSystem with a port number
  • Re-creating the Microsoft.Exchange.RpcClientAccess.Service.exe.config file.

Event logs:

Event 2280, IIS-W3SVC-WP
The Module DLL C:\Program Files\Microsoft\Exchange Server\V14\ClientAccess\Owa\auth\exppw.dll failed to load. The data is the error.

Event 5139, WAS
A listener channel for protocol 'http' in worker process '6700' serving application pool 'WsusPool' reported a listener channel failure. The data field contains the error number.

Best Answer

The issue i found was that the information store stated first. Stop the IS. Start the RPC client access and see if that starts. Then start IS.

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