‘Encryption credentials expired’ message

[Stodgeuk]

I have the same problem and none of the above works! Started on my wife's machine and then on mine.

Seems this issue has been happening for ages. How come HP doesn't fix it? Frustrating. Any ideas anyone>?

[senan6806]

@Stodgeuk

A warm welcome to HP Support Community! I'd like to help.

Are you using an HP OfficeJet Pro 8720 printer?

Which version of macOS is installed on your Mac?

Let me know!

[Stodgeuk]

Hi there, and thanks for writing.

No, I am using the 8710 printer/scanner with the latest OS on MAC installed (Mojave).

Thank you

[senan6806]

@Stodgeuk

Thanks! Resetting the printer network settings, reconnecting the printer back to the network and then setting up the printer with Apple AirPrint may resolve the issue. Let's try these steps:

1.) Unplug your modem/router and leave it powered off.

2.) Restart your printer, from the printer control panel, touch or swipe down the tab at the top of the screen to open the Dashboard, touch "Setup". Touch 'Network Setup", touch "Restore Network Settings".

3.) Power off your printer

4.) Reconnect your modem/router and wait for it to re-establish its internet connection.

5.) Power on your printer.

6.) Run Wireless setup wizard on the printer to connect it back to your network.

Once the printer is connected, use the steps below to remove the existing printer driver and add a compatible driver:

1.) Click the Apple menu, click System Preferences, and then click Print & Scan or Printers & Scanners.

2.) Check if your printer name displays in the Printers list, If your printer is listed, click the printer name, click the minus sign to delete the printer.

3.) If you see multiple printer queues for the same printer, remove all extra printers by selecting them one at a time, and then clicking the minus button  at the bottom of the list.

4.) Click the plus sign , click Add Printer or Scanner, click the printer name.

5.) Click the Use or Print Using menu, select AirPrint in the pop-up menu. Then click Add.

6.) Try to print.

Let me know  how it goes!

If the information I've provided was helpful, give us some reinforcement by clicking the Accepted Solution and Kudos buttons, that'll help us and others see that we've got the answers!
Have a great day!

[tam-web]

@Stodgeuk 

The printer has generated an expired server certificate. To resolve this issue please follow the directions outlined in the document "'Encryption Credentials Expired' Error Displays".

URL to document

https://support.hp.com/us-en/document/c06447928

If the information I've provided was helpful, give us some reinforcement by clicking the Accepted Solution and Kudos buttons, that'll help us and others see that we've got the answers.