Our HP LaserJet Pro MFP M225dw printer recently stopped connecting via wifi to the mesh. Did lots of troubleshooting (tried WPS, disabled fast roaming and beamforming) and nothing worked. I believe something has malfunctioned in the printer wifi itself.

That said, I plugged an ethernet cable directly from the printer to a Deco and boom, connectivity and can be seen across the network. Not ideal but saved me buying a new printer.

Hope this helps someone else!