i use a linksys WRT54G wireless router and i have 2 wmp54g adapters on my kids comps. everything worked fine for months and then last week , it stopped. they can pick up the signal and that is where it stops. it will not connect on either one. i use network magic and that usually keeps things running pretty smooth but like i said, in the last week nothing. is there something i can do to fix this and get them back on line.