We recently replaced the server and OS to NW6 with ZfD4 & NFAP in a
middle school. Since then, some of the Macs are experiencing slow data

transfers when transferring either from a mac to the server, or from
to mac. No network equipment was altered or replaced in this upgrade.

What could be causing the slow performance?? Incompatible Mac OS's
NW6 & NFAP ??? HELP!!!!