Encryption credentials expired

Good morning,

I would check out EpsonNet Config Utility. The printer needs to generate a new certificate. HP and Canon use a web interface to go through the steps. I just finished doing this with my Canon photo printer. I don't have an Epson so I can't be more specific.

UPDATE:

just found this in another request:

YanAvery

User level:

Level 1

8 points

Dec 31, 2022 1:32 PM in response to ab37jr

This error occurs when the Printer's web certificate has expired.

For me, to resolve this problem, I had to go to the printer's web interface, typically using https://<your_printer_name>.local/ and from there, you go to the following menu option:

Network Security Settings -> SSL/TLS -> Certificate.

From there, you choose the "Update" button form the "Self-signed Certificate" section.

This will have you go through the generation of a new self-signed certificate for your printer's web GUI which is also what Apple uses as it goes over HTTPS when communicating with your printer. I left the "10 year" suggested value for the "Certificate Validity (year)" field, this way I don't run into this problem for quite a long time.

Following that certificate update, I removed and re-added the printer from the Apple settings, didn't need to go through any of the Epson utilities.

I hope this helps!

best of luck.

Enter your IP address in a new browser; and login. Navigate to Network and advanced settings, network security settings to get to certificates. Choose "create a new self-signed certificate" and follow the prompts. It worked great for me after trying eight hours of things that didn't. I have Monterey 12.6.2 on a mid-2015 mac. Good Luck.

I was able to fix mine by updating the self-signed certificate. I did this by entering the printer's IP address into a new browser window. Once on the printer webpage, I opened the network security settings page then clicked the certificate link. I then clicked UPDATE on the self-signed certificate option. Once the certificate was updated, my printer now works as expected. I am not a techie, so hope this makes sense. Thanks again to user cl8rqtpi for guidance.

Good advice, but you need to add that the IP address to enter in the browser is the IP address assigned to the printer on your local area network, not your computer's IP address!

I found my printer's IP from my router configuration page's device list, and then just entered http://<ip address> and then found the Epson printer web-admin interface that allowed me to update the certificate.

This really shouldn't be something you have to do on macOS....definitely not "novice user level" and very un-Apple like!

Hopefully this works for you, it worked for me. Go to Apple: "system preferences" go to "printer and Scanners" Then left click on your printer and "reset printing system". Then click the + a the bottom to add your printer again. Add the printer by right clicking on the top one "Epson WF-4630 Series Bonjour Multifunction" on the bottom for Use: select "AirPrint" then to the bottom select "Add". Then it should work.

Success!!

I tried all of this for my MacBook Air, and finally reached out to my company's tech support. They gave these simple steps that worked and said that I needed to "add the printer by choosing a generic printer driver":

1. Open "System Preferences"

2. Click on "Printers & Scanners"

3. Click on the + icon on the left-hand side

4. Select your printer from the list, then click on the dropdown next to "Use" and click on "Generic PCL Printer" (I had to wait a couple seconds for this option to appear in the drop-down, it wasn't there at first)

5. Click "Add"

6. Test the printer to ensure that it is working

Mac_fan_for_life wrote:

Success!!

I tried all of this for my MacBook Air, and finally reached out to my company's tech support. They gave these simple steps that worked and said that I needed to "add the printer by choosing a generic printer driver":

1. Open "System Preferences"

2. Click on "Printers & Scanners"

3. Click on the + icon on the left-hand side

4. Select your printer from the list, then click on the dropdown next to "Use" and click on "Generic PCL Printer" (I had to wait a couple seconds for this option to appear in the drop-down, it wasn't there at first)

5. Click "Add"

6. Test the printer to ensure that it is working

Their workaround is “don’t use AirPrint”. I would not encourage that as a solution.

That worked but only after I selected AirPrint and not Secure AirPrint.

Tried ALL of the above and searched the net for more help but found none. Finally (after hours of frustration), the only thing that worked was downloading the 'Recovery Mode Firmware versions AD24J4'. I 'Reset Printing Systems' to remove the printer first, then downloaded the above from: https://epson.com/Support/Printers/All-In-Ones/WorkForce-Series/Epson-WorkForce-WF-7620/s/SPT_C11CC97201?review-filter=macOS+13.x

Worked immediately.

Joolz56 wrote:

Any ideas how to fix this?

If the printer queue with an expired certificate is still listed in Printers & Scanners— remove it and re-add the printer.

The new certificate should be renewed.

I do this from CUPS management   through the browser:   http://localhost:631/admin/

if no interface, then  from Terminal.app  copy & paste:

cupsctl WebInterface=yes

I ended up getting mine to work by deleting the printer and re-adding it but choosing the generic driver for it. I have a xerox laser printer.

Joolz56 wrote:

I’ve got an iMac running Ventura. I also have an Epson 4630 printer which I’ve been using for many years. Today I can no longer print. Printer states Encryption Credentials Expired.

I’ve removed the printer and re added it as an AirPrint but it hasn’t fixed it. Any ideas how to fix this?

I do see " Epson 4630" < Epson WF-4630 > (?) listed as an AirPrint...

About AirPrint - Apple Support

if in doubt—

Epson WorkForce Pro WF-4630 driver download

Epson WorkForce Pro WF-4630DWF Support

I recently upgraded to MacOS Monterey 12.6.2 and my EPSON WF-5620 printer stopped printing documents.

All prints ended up in the queue which was permanently paused.

I did try deleting and re-adding the printer back, as well as the resetting the printer system, neither of these two options worked for me.

Somewhere I came across the error message that the Encryption credentials has expired.

Updating the certificate certainly worked for me too.