If the error can be reproduced, set trace socket to active in the TCPIP.DATA configuration file and rerun the application. The traces provide more information about the internal operations of socket functions and might suggest a reason for the error, or yield some better insight into the chronology of events leading up to the error. If you are still unable to determine the cause of the problem, create the problem again with the CTRACE option SOCKET active. Contact the IBM® Software Support Center with the original message, the traces, and the dump.