What we had, 4 port d-link router and 2 hubs. 7 machines on the network. One database folder of about 500MB (XP machine) backed up to another XP machine. Took about 6 to 7 minutes daily.

What we have now: same d-link router and a new 16 port d-link switch. First day for this setup. Tried the 500MB folder backup, at 14 minutes it was only about 50% done. Tried backing up much smaller folders from other machines, also extremely slow.

What is the problem with the transfer rate between these machines?

TIA