My Mac can't find my HP 1022 any longer. They may be using different WIFI networks.

[CarrotQueen1]

I have a MacBook Pro running macOS 10.13.6.  In trying to fix a problem with a new printer, I inadvertently lost my workhorse printer, my HP laserjet 1022n, product no. Q5913A. 

The cause of the mess:  I had to reset the MacBook's printers.  Since then, my MacBook can't find the 1022n.

Here's what I've done:

-I tried to add the printer using its IP address.  I get this error message:  "Unable to verify the printer on your network."

-I unplugged the printer, waited, plugged it in again.  Then I tried to add the printer.  Same error message.

-I deleted the printer driver.  Then I unplugged the printer.  While it was unplugged, I reloaded the printer driver and restarted the MacBook.  Then I tried to add the printer.  Same error message.

There are 2 WIFI networks here.  I wonder if the 1022n is using a different network from the MacBook.  It should be the same network because the 1022n sits physically 8 feet from that WIFI router.  Yet the self test/configuration page doesn't say what network the printer is using. 

2 questions:

-How can I make sure the 1022n using the correct network?

-If that's not the problem, how can I get this amazingly reliable printer back in service?

[TEJ1602]

@CarrotQueen1, Welcome to HP Support Community!

To be able to assist you better, I would like to know the following:

• Are the printer and PC connected to the same network?
• Is your router dual-band enabled i.e., both 2.4GHz and 5GHz?
• What is the distance between the router and the printer?
• Is there any antivirus software installed on your computer?
• Could you perform a ping test using the Mac Network Utility and let me know the results?

Use the printer IP address to perform a ping test, the printer IP can be located by selecting the wireless icon on the printer display.

The wireless status menu on your Mac should also give us quite a lot of information that would help us identify the issue. You can press and hold option-click the WiFi icon and then use shift-command-5 to take the screenshot. Press the space bar when the icon turns into a camera. Share the ping test results and the screenshot with us.

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.

Keep me posted for further assistance.

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