A:AnswerCheck your router settings. You may have configured it in a way that your 2.4ghz is not active nor broadcasting. Majority of printers and even computers connects with 2.4 ghz and not 5ghz. A lot of mobile devices can connect to 5 ghz. But even if your device is connected to 5 and your printer to 2.4. As long as your both connected to only one router then they should still be able to communicate.