Error : DCOM was unable to communicate with the computer ADCB.ABCD.net using any of the configured protocols; requested by PID 2bec (c:\windows\system32\inetsrv\w3wp.exe).
Error: A process serving application pool 'MSExchangeMapiMailboxAppPool' suffered a fatal communication error with the Windows Process Activation Service. The process id was '2412'. The data field contains the error number.
Please suggest