It's been a couple years since I messed with WEP since I live in an area where no one can reach the signeal but me at home.
but IIRC..
don't you have to enter the WEP key on each client machine..
another alternative I used when I lived in an apartment, which imo is easier than WEP is.
configure the router so it only allows mac adresses from your machnes... the only machines that get ip's are the ones on the mac address list at the router.
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