Home printer doesn't work after Cox installed a new modem/router today

Help - my wireless printer won't work and my kids need to print out some reports for school tomorrow. Cox upgraded my wifi system today by replacing my old router and modem with a new high velocity dual channel box which acts as both a router and modem. I have tried on multiple laptops without success ... both say the printer is not connected to the network. I have turned the printer on/off without success, verified it is on, logged into each of the networks (home and home5) and no success. Not that it should matter, but the printer is a Samsung C410 Series ... it worked great for the last year so the issue must be caused by the modem/router upgrade, but I have no idea what to do ...