I just moved to a new home. I used to be able to print to a Brother MFC-8400 printer from my MacBook via Airport Extreme and AT&T 2wire gateway. Somehow I must have set it back up wrong. This is how I've set it up in the new place:
Airport Extreme connected by ethernet cable to an AT&T 2wire gateway which is connected to a Windows XP computer by ethernet cable. The printer is connected directly by USB to this Windows PC.
I can access the internet fine from my MacBook, but can no longer successfully send print jobs to the printer. What am I doing wrong? When I go to add a printer on my MacBook, it doesn't find anything. Can't figure it out. Can't figure out who to call for tech support.