Windows maching code 23 and 58 errors

Hi,

We have a netbackup client that is receiving netbackup code 23 (socket read and 58 client can’t connect codes)  we had the Windows Sys Admin reboot the server. The subsequent backups have gone back to receiving the 23 an 58 errors.

The connections seem fine on the commands can anyone shed any light on this?

Hardware info

Windows 2003 sp2 using 7.5.0.1 client

Netbackup master server Linux (7.6.0.1) <<<this is a recent upgrade 

The bpcd and bpfis logs are attached.  The other logs including the bpkar and bptm were empty even after a couple of days.

Thanks