4.5 (mp6) Master and media server -
2003 Windows Master / media server -
4 DLT7000 Sun L1800 

Last 2 weekends with Full backups 
We have been getting -

media manager - system error occurred(174)

on our large Window Client backups - 
2 Windows 2000 and 
2 Windows 2003 Clients.

Communication buffer and network buffers have always been
64k - NIC's and ports all 100 FD - 
Nothing has changed?

Any Ideas ?

Thanks
Eric