15. IPC Error on server machine
This error is introduced in release 4.622. If a call is made to a database manager on another machine via DP4 networking, and an IPC error is returned to the DP4 network requester (fail error 9), then the network requester changes the error number from 9 to 15 (DOS_RIPCERR). (Such an error might arise if the database manager on the other machine crashed or was terminated while the network manager was eaiting for it to reply) The error number is changed because fail error 9 should always be treated as non recoverable, but in this case it is possible to continue after the error.
If you encounter this error you should close your connection to the remote machine. You may encounter fail error 7 when doing so, because it is likely that the network manager on the other machine will have handled the original fail error 9 by closing the DP4 service on that machine. You can attempt to establish a new connection to the remote machine, but will probably have to wait for the DP4 service to be restarted on it.