UnknownHostException

After I configure my TN but I can not send PIP to my partner with error message “java.net.UnknownHostException: https com.wm.estd.rosettaNet.transport.TransportException: com.wm.estd.rosettaNet.networkTransport.NetworkTransportException: com.wm.estd.rosettaNet.RosettaNetException: com.wm.app.b2b.server.ServiceException: java.net.UnknownHostException: https” .

Anybody have the solution ?
Thanks

Google java.net.UnknownHostException. It would appear that you are attempting to send a document to an invalid or unreachable address.

Mark

I can reach it on browser and install certificate for this but I dont know how to configure it on TN, I am using HTTPS to send document and I installed certificate to my server.Do you have the same problem ?