MFP M234DW won't connect to WiFi - used to be connected, only shows offline now

[turtlecove]

For the Love of God I *need* HELP!  I've been working on this for THREE HOURS now.

My Brand New WiFi printer (HP LaserJet MFP M234dw (7DEE33) S/N VNG3M***** (I have the full S/N but not sure if I should share it online) won't connect to the wi fi and I cannot get the printer registered to my 123 Smart app, nor can I get this website to find it by S/N and or product number.

It's status shows an orange blinking light.

I   Am  SO  FRUSTRATED!!!

1) Upon getting the printer a month ago, it connected perfectly and automatically.  

1A) There have been no changes to the setup (ie - same router, same mac, same printer...I just moved the mac from one room to the next).

2) I have rebooted the printer, the wi fi, and the Mac MULTIPLE times today. 

2A) I've also uninstalled the driver per the Help files - now I can't reinstall the driver - it won't choose a driver.

3) The ONLY significant change I've made is installing a program called "papercut" so I can print remotely to another printer (which shouldn't affect this printer since it's right next to me, as is the router.

Please, please help.  I've read EVERY Help page and it's a vicious circle with no help.

Thanks.

[Kumar0307]

@turtlecove, Welcome to the HP Support Community! I’m here to help.

I see that you are not able to connect the printer to the network.

Follow the steps mentioned in this document - Connecting an HP Printer Using Wi-Fi Protected Setup (WPS)

• How far is the printer located from the WiFi router?
• Restart the router, the printer, and the Mac
• Make sure the printer and the Mac are connected to the same wireless network. Either 2.4 or 5GHz network.
• If you have a Dual-band router and both 2.4GHz and 5GHz networks share the same name/SSID, the printer will not be able to connect to the network. In this case, contact your Internet service provider to assign different names to both networks.
• Also, check with your Internet service provider if your router is able to forward 'Bonjour packets'.

Bonjour locates devices such as printers, other computers, and the services that those devices offer on a local network using multicast Domain Name System (mDNS) service records. The software comes built-in with Apple's macOS and iOS operating systems.

• This printer supports WPA encryption, check if the router is on the same encryption method. If using WEP or WPA-PSK+FT change it to WPA-PSK

Perform a ping test to check the connectivity

1. Obtain the IP address of the printer by clicking on the Wireless icon on the printer
2. On the MAC Go to Spotlight > search for Network utility > select Ping tab > enter the IP address of the printer in the box
3. Check the second box that says Send only > 10 pings
4. Click on ping > Check the results at the end if any packets are lost
5. Note: There should be 0% packet loss, share the results in your next post.

Hope this helps! Let me know how it goes. 

Please click “Accept as Solution” if you feel my post solved your issue, it will help others find the solution.

Click on the YES button to reply that the response was helpful and/or to say “Thank You”.

Have a great day!