We have a netty server running on a specific tcp port. Once in a while, we are getting time out from client connection at this port. But already connected clients have no problem transferring data in the mean time. What could be the problem and what steps can we take to troubleshoot this? The server has very low cpu/ram usage so I don't think the server is not being able to process the request.
We can reproduce this time out behaviour by telneting to that specific port. Telnet also times out.