[shaggylive]

well, a couple of things and it could just be the nature of adHoc.
say I have my pc and laptop both connected to the phone via wifi. then I turn off wifi router. when I turn it back on sometimes I have to repair my connection on pc/laptop, or disable then re-enable the wifi, sometimes I have to do this 1pc @ a time.
(keep in mind both have internal wificards without a easy switch.)

also I've noticed that if the battery dies and the phone reboots, it turns the wifi back on, so you have to manually turn it back off before you start the router.