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Common problems for Connectivity Issues
We would like to share some of the most frequently asked questions about Printer Wi-Fi, Connectivity Issues and Offline Status. Check out this link: HP printer is offline or unavailable.
HP Recommended
HP Color LaserJet Pro M255dw

My Laserjet M255dw will not stay connected and I do not know why.  It randomly goes offline.  For the first year, it worked fine without this occurring.  I have to unplug it and wait for it to reboot, and it always reconnects without fail, so I am confident that it is not the network, connection strength, etc.  It is the only product in the house that continues to do this.  I have read others' similar problems and have tried/ruled out solutions given.  Printer is wirelessly connected, right next to router.  No other changes/additions have been made to my home setup.  Can anyone help?

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