Torque Error - Address already in use (98) in scan_for_exiting, cannot bind to port 464 in client_to_svr - too many retries

pbs_mom;Svr;pbs_mom;LOG_ERROR:: Address already in use (98) in scan_for_exiting, cannot bind to port 464 in client_to_svr - too many retries

One cause for this is very high traffic on the network not allowing the mom and the server to communicate properly. One common case are job scripts that incessantly run qstat. You will be surprise that sometimes users input some of these qstat scripts that cause the error