BleepingComputer.com: File Sharing Dropped Out

Hey Guys,
I got sick of flukin a adhoc connection between my pc's, so I gotta cable router.
I connected it all up lastnight, and it worked sweet as. No hassles. I turned pc's off, turned them back on this morning, and it shares the net, but file sharing doesn't work. I then had to go to work lol. get back hom,e and it still not working.
ANy help thanx