a friend lost his wireless internet and doesnt know how it happened. does anyone have any ideas on what causes this?

somw douche couldve logged into his router and disabled his routers wirelss function. If there is a wired computer in the house, login in to the router. Fpr my netgear wireless router it is routerlogin.net

 

 

Tell him to login with the routers ip address in his address bar. I think this will work. Make sure it is broadcasting the signal and secure the thig if it is not already secured.

BTW, a lot of these units have a hardware reset button on the bottom that takes the unit back to factory defaults.

I've found that I've had to hard-reset these things quite a lot as well. They can be a little annoying at times