We've been dealing with this as well for a while. All of the sudden, all of our devices stopped being able to connect to the printer, even though the printer was connected to the wireless network. The issue was that our Linksys router has simultaneous 5Ghz and 2.4Ghz, so the devices were connecting to the 5 Ghz and the printer was connecting to the 2.4Ghz and they wouldn't communicate. I had to disable the 5 Ghz network. Not the best solution for speed, but at least now we can print.