Explanation: The bpsynth process was unable to accept the connection from the bptm or the bpdm reader process that runs on the media server.
Recommended Action: Examine the NetBackup error log for any errors that bpsynth and bptm or the bpdm reader process logged. The message that bpsynth logged includes the error (errno) reported by the system call. Refer to the debug logs for bpsynth on the master server and bptm or the bpdm process on the media servers for more information. Ensure that network connectivity exists between the master and the media servers. If the problem persists, contact customer support and send appropriate logs.
A complete list of required logs and configuration information is available.
See "Logs To Accompany Problem Reports for Synthetic Backup" in the Troubleshooting Guide.