OfficeJet Pro 6978 wifi no longer connected

[TXLakeGirl]

Hi, my office jet pro 6978 is no longer connected to my network as it was this morning.  I'm getting error 9923.  I'm on iMac running Mojave 10.14.6.  I tried resetting printing system.. no luck.  Printer's WiFi light is not on.  It's like the Wifi has been turned off on the printer.  

[Kumar0307]

@TXLakeGirl, Welcome to the HP Support Community!

On the printer screen, go to Setup > Network Setup > Restore network settings

Network System preference > Advanced > Configure IPV6 > Automatic  

Go back to Network > Wireless > Wireless setup wizard and select your network.

• Make sure the printer and the MAC are connected to the same wireless network.
• This printer supports only 2.4GHz network. So, the MAC should be on the 2.4GHz 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 the networks.
• Also, check with your Internet service provider if your router is able to forward 'Bonjour packets'.

Try printing.

Hope this helps! Keep me posted. 

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