ICS host can't access internet

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After banging my head against the wall for weeks, i've decided to post
here in hopes that smarter mind have an answer.

my situation:
I have one desktop (windows xp pro) that is connected to a dsl
internet hookup.

i have a laptop (windows xp home) that can currently only get online
if i crawl down and hook it to the dsl box with an ethernet cable.

my sister has a laptop (windows xp pro) with the same situation.

all computers have wireless cards.


I would like (love, kill for) to have the desktop share the dsl
connection via wireless. so that both laptops and the desktop can all
browse the web at the same time. [i'd also like to enable file and
printer sharing so that all computers can print from the desktops
printer and store file on the desktops hard drive]

i have run the connection wizards on the ICS host...but after the lan
connection shows as being "connected,shared, firewalled"...the desktop
is no longer able to access the internet!
at that time the clients are not able to access the internet either.
(the wireless network look fine...they all say they are
connected...and the shared files are accessible)

i have not found any solutions in any troubleshooters or online help
pages. i seem to recall having this problem in a windows ME ICS
host...i think it had something do do with disabling a service...maybe
DCHP? ... i can't recall.

I'd just love it if someone could help me fix this.
thanks,
David
.

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