Wireless network keeps going down

My network keeps going down and I am unsure what to do to
fix the problem. When it goes down if I take a look at
the network settings all IP addresses are zeros. The
network goes down regularly, I am running windows XP and
my computer has a wireless

i think i got a similar problem to yours. however, for
me. when i shut down my system all computers on my
network were okay. in the morning when i start up the
system, three of the computers cannot access the network.
when i try pinging, i get the command destination host
unreachable. i dont really know what to do and my network
specialist is out on vacation to return in 2 weeks.
please help.

im running a wireless network on windows xp, wireless
network cards. all computers but 3 are working