Wireless printer setup usually fails on the network side, not the printer. The printer powers up, its screen says it is connected, yet your computer or phone never lists it. The cause is almost always one of three things: the printer can only see a 2.4 GHz network while the router is broadcasting 5 GHz, the phone is on a guest network, or the router is stopping devices from seeing each other.
This guide walks through getting the printer onto your home network, adding it on Windows 11 and macOS, printing from iPhone and Android, and the order in which to check things when no page comes out. The menu names come from the current Microsoft, Apple, Google and printer-maker support documents; panel menu names vary by brand, so common equivalents are given in each step.