I guess it's a firewall problem.
However, this is not the right forum to ask. I would ask this in the WebLogic Server Form.
We are able to resolve this issue after raising it with oracle support, we had to add the ip and host entry in the host file and then we have to do a ping/flushdns to set the new entries.
One more issue we had was host and ip entries was missing at the server level too,