We just installed a cable modem at our office. When I connect a PC
directly to the cable modem I experience download speeds of 4-6Mbps.
However, when I configure a browser on another PC to go through BM 3.8
Proxy I get download speeds of less than 200Kbps.

I get similar results when I set the PC's default gateway to be the OES
(Netware) server and just use NAT to get out to the Internet. Indeed, my
upload speeds are actually faster than my download speeds.

Mine is the only one PC in the company going through this OES/BM server.

I tried some settings that I read about in the TIDs, but to no avail.

Any suggestions?