Monday, November 14, 2011

The Microsoft Exchange Replication service failed to start the TCP listener Event ID:2121

If you are getting fallowing errors Event ID:2121 , Source: MSExchangeRepl and your Exchange services are not coming up with fallowing errors…

Log Name: Application
Source: MSExchangeRepl
Date: 11/13/2011 5:50:17 PM
Event ID: 2121
Task Category: Service
Level: Error
Keywords: Classic
User: N/A
The Microsoft Exchange Replication service failed to start the TCP listener. Error: Microsoft.Exchange.Data.Directory.NoSuitableServerFoundException: The Microsoft Exchange Active Directory Topology service on server localhost did not return any suitable domain controllers.
at Microsoft.Exchange.Data.Directory.DSAccessTopologyProvider.GetConfigDCInfo(Boolean throwOnFailure)
at Microsoft.Exchange.Data.Directory.TopologyProvider.PopulateConfigNamingContexts()
at Microsoft.Exchange.Data.Directory.ADSession.GetConfigurationNamingContext()
at Microsoft.Exchange.Data.Directory.Recipient.ADRecipientSession.GetWellKnownExchangeGroupSid(Guid wkguid)
at Microsoft.Exchange.Data.Directory.Recipient.ADRecipientSession.GetExchangeServersUsgSid()
at Microsoft.Exchange.Cluster.Replay.RemoteDataProvider.StartListening()
Event Xml:

Possible solution: If topology service is not able to figured out what subnet the Exchange server belong too. Simple way to check and fix this will be adding the subnet for the Mailbox server into ADSITE and services. Perform IPconfig /all on the Exchange server figure out what subnet it is sitting on and add the subnet in ADSITE and services, you will need to reboot or , restart net logon and Exchange Services.
Oz Casey, Dedeal ( MVP north America)
MCSE 2003, M+, S+, MCDST
Security+, Project +, Server + (Blog) (Blog)


Anonymous said...

1.Needs your help regarding configuration
I create a CAS array name as for internal and external use, set the databases with this cas array.Set the RPCclientserver
create a DNS entery as with same IP address of Server
Owa is working fine but MAPI clients are unhappy and did not connected
Any suggestion ??

Jeremy said...

Thanks so much! I added a new site and subnet to AD, but didn't add the existing subnet into AD, which broke Exchange. This article was exactly what I needed to fix the issue!!

Anonymous said...

Thanks so much for this. I did the exact same thing as Jeremy, and had the same result. You saved me!