Hello all,
I recently installed M0n0wall on an old IBM P200 system, all successful and 
all is running fine.
Now I am getting a strange problem, when I start a pc (does not matter which 
one) it functions normally. After a few minutes it does not resolve any web 
anymore.
If I manually enter the DNS servers into the IP configuration from the PC, 
it works fine (because I bypass de DNS forwarder from M0n0wall)
I looked at all options, enabled/disabled DNS forwarding, rebooted machine 
several times, but this continue to happen.
Any body an idea where I can resolve this problem? I have seen the problem 
is reported before, but no resolution for this problem.
My setup: 

M0nowall v 1.3b2
IBM P200MMX 96Mb RAM
2x 3Com 905TX-M NIC's (1xLAN, 1x WAN connected to Motorola cable modem)
1x Linksys WMP54GS (wireless PCI NIC) but the system does not see this card
CD to boot m0n0wall from and a floppy  to store.

Thanx in advance!

Harbert