Wifi card gone bad?

[RiverCityPrints]

I've been using my MPF M477fnw, printing via wifi network and Apple AirPrint with no problems for ~7 months. Suddenly, none of my desktops, laptops, tablets or phones could print to the unit - although it still was pulling an IP address and showed up as a "connected device" on my router.

Here's what I've done to troubleshoot:

1.) I confirmed that the printer had a live wifi connection (re-ran Wifi wizard) and ran a wifi test from the printer).

2.) I uninstalled the printer from Windows and re-ran printer setup. The install routine could not find the printer until I connected it via Ethernet.  (Printer works OK as an Ethernet device)

3.) I tried printing with Wifi Direct - which works, but only if I connect my phone to the printer's wifi network.

It seems to me that the wifi card or some related circuitry has gone bad. Any other ideas? Any idea how to resolve this with HP (the printer is still under warranty)?

Thanks, in advance.

[RiverCityPrints · Accepted solution]

Update: After a chat session with HP Support, I reinstalled the printer as a new device in Windows. All good now!

Thanks, HP!!