Nighthawk X4S C7800 - Printers

[chornung]

Win 10 64:mmHP 400 LaserJet printer (cable connected to router/modem, not USB) is responding to print job from desktop (not wireless), but not from wireless laptop. HP DeskJet 6940 (USB connection to router/modem) is not recognized by either desktop or laptop. What do I change? Thanks!

P.S. Sorry for the cross posting; posted in different group by mistake.

[DarrenM]

Do you have the latest drivers for the printer? does the laptop have the proper printer drivers? Have you tried to reserve the IP address of the printer on the router?

DarrenM