HP Laserjet Pro m428f - Certificate errors when sending email tests

[quattleb]

I've got a HP Laserjet Pro m428f and 3-4 days ago I began having issues with Scanning at the LCD panel. I've long had a QuickSet to Scan to Email that worked.

Now I see "There was an internal processing error. Please retry or manually check the firmware updates." on the LCD screen

I've tried many things but still cannot get it fixed. I hope someone can provide me a solution.

Using MS Edge I accessed the web gui. Added a NEW Quickset and the same error

In the GUI I went to the default email settings and when I attempt to send test messages get a Certificate error.

If I turn off having the printer check the Certificate I get a System Error.

Using the GUI I did a factory reset and tried the above all over again. Failed.

I've unplugged the printer for 10 minutes - replugged and still the same.

I've tried creating a new Certificate but still failures.

--

I know my SMTP servers is correct and I know about Application Specific Passwords.

----

Suggestions?

thanks

qb

[quattleb]

HP support no help. $39 and 1.5 hours on the phone with them trying the exact same things I tried. Now they are suppose to send it up to the next support level but suggest it is an electronic issue. ugh.