Could be multiple reasons but one is if you set an rpc static port but was entered in incorrectly. http://msexchangetips.blogspot.com/2011/02/microsoft-exchange-rpc-client-access.htmlJames Chong MCITP | EA | EMA; MCSE | M+, S+ Security+, Project+, ITIL msexchangetips.blogspot.com

Exchange Server 2010 Error - When I'm starting the service Microsoft Exchange RPC Client Access there is an ERROR "Microsoft Exchange RPC Client Access started and stoped. Some services stop automaticly if they are not in use by other services or programs".

Thank you, I will try.

Got any Av running which you cn disable on the server? If youre not running SP2 UR3 then I would attempt to put that on then check again.Sukh

Thanks James, we did that change but the problem still persists.

We don't have at this moment any av installed on Exchange Server...

If youre not running SP2 UR3 then I would attempt to put that on then check again. --------------------------------------------------------------------------------Sukh

Could be some binaries or config files for the rpc client access got messed up. Try re-running below to see if you can re-initialize it and try starting the service. New-RpcClientAcess -Server serverNameJames Chong MCITP | EA | EMA; MCSE | M+, S+ Security+, Project+, ITIL msexchangetips.blogspot.com