connection timeout error in the Response side

Hello Experts,

I am getting the connection timeout error in an RFC -PI -SOAP synchronous scenario.

"com.sap.engine.interfaces.messaging.api.exception.MessagingException: java.net.ConnectException: Connection timed out"

I have gone through several blogs but didn't find convincing answers for such problems. I went through a time out document , which stated that for the receiver SOAP when the receiver application takes much longer to process the request message and give back the response to the receiver adapter, SOAP on the receiver side can get timed out. The solution for this is to increase this value by setting parameter XMBWS by value more than 5min ie by default it is set to 5 min or 300000msec. I had increased it to 600000msec ie 10 min, but the error persists.

Other scenarios configured for the same wsdl is working fine.

Can anybody share the solution for this type of scenario.

Thanks

Regards