Could not connect to net.tcp://servername/PWTransmittalService/PWTransmittalService.svc. The connection attempt lasted for a time span of 00:00:01.0031003. TCP error code 10061: No connection could be made because the target machine actively refused it serverIP:808
The Integration server was connecting to the incorrect port on the Transmittals Server. This can also happen after an Integration Server upgrade, as it would revert back to the default settings of net.tcp://localhost...
Verify the net.tcp port that was configured during the setup of BTS server, in the IIS bindings
On the Integration server, open the following file in notepad: C:\Program Files\Bentley\ProjectWise\Bin\Bentley.ProjectWise.WCF.PWTransport.dll.config
<RelayNode targetUri="net.tcp://myserver.bentley.com:808/PWTransmittalService/PWTransmittalService.svc" relayUri="net.pw://localhost/PWTransmittalService/PWTransmittalService.svc" binding="netTcpBinding" bindingConfiguration="PWTransmittalServiceNetTcp" tokenMode="UserCreds"/>
<binding name="PWTransmittalServiceNetTcp" openTimeout="00:10:00" sendTimeout="00:10:00" receiveTimeout="00:45:00" closeTimeout="00:10:00" maxReceivedMessageSize="10000000">
<security mode="None"/>
</binding>