Having a self signed cert isn't going to help, you typically need a root/domain cert configured, and it depends on what server config the card is reaching out to. You can't just guess. You should be able to Export them from the working device to the not working device in that area.
You have 2 identical printers running the same firmware and same plugins with the same reader and card, clearly a setting is missing, it must be the certificate. If you think the printer is the problem, have a tech reset it to factory defaults and reload it.
EWS > Sytem > Security > Security Certificates
Make sure the time is right and the certificate is loaded, neither option is done via a clone file
We have 2 versalink C405 printers in our office and they have the same settings with the lastest firmware 68.51.61. We are using a TWN4 cardreader as the login authentication method with the login settings configured. And we have installed the 4 plusins in the cardreader file. However, one of the machines cannot work with the the card reader. Whenever we tap the card, the red light shows in the card reader and nothing else happen on the screen. But this card reader works in another MFP. What could be the issue with the MFP to stop the card reader from working?
Solved! Go to Solution.