TCP error code 10061: No connection could be made because the target machine actively refused it

Coworker was getting a TCP error code 10061: No connection could be made because the target machine actively refused it [closed] error, while trying to setup an application to run in IIS.

The fix that worked for us can be found here: TCP error code 10061: No connection could be made because the target machine actively refused it 127.0.0.1:808. windows 7.

The fix was basically to check the “Windows Communication Foundation Non-HTTP Activation” checkbox under .NET Framework 3.5 in the Windows Features settings box.

Tags: #WCF #TCP