OSX 10.6.7
wow, what a day. History is that we had a DSL service that was fine for me, but not for anyone else in the house.
Switched today to cable. Moved the modem and router to another room.
Actually went back to my older original router that worked earlier in the day.
So now their PC's work, but my Mac won't. Even though I have Airport back... somehow... I can see my network in the drop down file that I access from the Airport icon in the upper right of the screen. My network doesn't have the "lock" on it anymore, seems to be active, but everything just spins.
I'm on now only because the DSL modem is in my office and I cabled it.
I'm not sure what is going on.
In the System Preferences/Network dialog box, on the left side of the screen, Airport said "inactive." That was with my new router. I reconnected my old router and the story is as above.
Frank