Receivecallback and Empty or blank response received

I am using Mirth 3.2. I have configured mirth to send and receive messages to another application. I configured 3 channels. First channel is to send ORM message to another application. Second channel is to receive ORU from the other application. Third is again to send ORU. In the third channel I am receiving "Empty or blank response received" error. I am using TCP sender (MLLP) in channel 1 and 3 and the configuartion is same for both (screen shot attached). When I received "Empty or blank response received" error same time in the receiver system "receivecallback" error occured. please find the below log from receiver system.



[03/24/15 11:40:24.720]ReceiveCallback:SocketDisconnected From Remote:16.86.52.10:65244 Local=100.80.5.16:11177

[03/24/15 11:40:24.720]HL7Sock.CloseSocket: 100.80.5.16:11177

[03/24/15 11:40:24.720]Shutting Down: 11177

[03/24/15 11:40:24.736]Server Socket: HL7Socket/AUH PROD IN Port:11177 is listening.

[03/24/15 11:40:24.845]Received a new connection from Port: 11177

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Receivecallback and Empty or blank response received