Environment: BM3.8 on NW65sp5 RAM: 1.5G CPU: 2.4GHz Xeon on Dell

The BM serves over 200 clients at peak for around 2 hours. It runs
smoothly when the number of clients is not that many... but as it serves
more and more clients, the likelihood of 504 error increases. Sites that
are visited a few seconds ago on one workstation would become 504 error
on another workstation on the same LAN.

Thing gets better as soon as the number of clients dropped.

I also notice on the BM console... the number of failed attempt increases
sharply when the number of clients increases... shouldn't they be queued?

What should I do to increase the performace and debug the problem?