BizTalk: Error – Unable to enable Receive Port

Error:

The Messaging Engine failed to add a receive location "RP_ReceiveAcks.NetTcp" with URL "net.tcp://localhost:8994/Domain/Ack" to the adapter "WCF-NetTcp".

Reason: "System.ServiceModel.AddressAlreadyInUseException: There is already a listener on IP endpoint 0.0.0.0:8994. Make sure that you are not trying to use this endpoint multiple times in your application and that there are no other applications listening on this endpoint.

 

Resolution:

1. Make sure no application is listening on the same endpoint
2. If you are using same port number across multiple endpoints, make sure they all run under one host instance.