My M477fdw Laser Jet Pro has started waking itself up a minute or two after going to sleep. It used to go into standby / sleep mode just fine.
It's connected to my wifi and hardwired to a desktop. I've rebooted the desk top, tried leaving it powered off and disconnecting the printer cable. none of those actions helped so I don't believe the desktop computer is involved. Is there a setting buried in the printer that causes this or something buried in a queue? I've checked all the queus I know of an there's nothing sitting there. I've changed the "go to sleep in X minutes" setting. No help. Rebooting the printer doesn't change anything.
Any idea what's making the thing wake up all the time?
Go in to the embedded web-server and disable the wireless card.
Live in an apartment or condo with lots of neighbors? It could be outside interference causing it. Once the wireless card is disabled you will be able to tell which side of the unit is doing the waking.
Be alert for scammers posting fake support phone numbers and/or email addresses on the community. If you think you have received a fake HP Support message, please report it to us by clicking on "Flag Post".