The HPLJ M451DW is connected via Wifi to a Netgear R7000 router. The printer can be seen in the R7000 admin interface as attached and I can also do a Wireless Network Test from the printer where everything is Pass.
But from time to time I cannot print/connet to it. I have tested both Win 7 and Win 8.1 clients attached to the network via Ethernet as well as wireless.
I did have the same issue with the previous router, a DLink 655, so this is obviously a printer thing and not dependent on the router.
Any ideas?