get a mac/thread
Make sure its not a network issue before you go around debugging everything else. Trying pinging each computer from one another.
did u get it to work?
if not, can u print from the computer its connected directly to? (call this computer A)
if not, either printer is fucked or the cable or the drivers(software) for the printer is messed up. Maybe windows automatic update changed the driver and now it doesn't work.