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Lexmark TS650

Lexmark TS650

Authentication Errors Due to Improper CA Certificate Installed on Multiple Product Generations

Affected Products:

Single-Function: T650, T652, T654, T656, MS710, MS711, MS810, MS811, MS812, MS911, X464, X466, X544, X546, X651, X652, X654, X656, X658, X734, X736, X738, X850, X860, X862, X864, W850 and 6500

Multifunction: MX410, MX417, MX510, MX511, MX517, MX610, MX611, MX710, MX711, MX810, MX811, MX812, X548, X746, X748, X792, X852, X854, X925, X950, X952, X954, XC2130, XC2132, XM1140, XM1145, XM3150, XM5163, XM5170, XS734, XS736, XS738, XS548de, XS652de, XS654de, XS656de, XS658dfe, XS658dme, XS748de, XS795dte, XS796de, XS796dte, XS798dte, XS798de, XS860de, XS862de, XS864de, XS925de, XS950de, XS955de, MX6500 and WS850

Solution / Software: Card Authentication, Print Release and Smart Card Authentication

Issue Description:

Swiping or inserting your card leads to an authentication error. This particular error relates to a decrypt-integrity check failure.


Check and verify that your certificates are correct and valid.

To do this:

  1. Open the printer's EWS by entering http://<printer's_IP_address>, where printer's_IP_ address is the printer's TCP/IP address.

  2. Click on Settings.

  3. Click on Security.

  4. Click on Certificate Management.

  5. Click on Certificate Authority* Management.

  6. Verify proper installed certificates, or click on New and then Browse to select a proper PEM** file.

* Entity that issues a digital certificate (CA certificate), which certifies the ownership of a public key by the named subject of the certificate.

** Privacy-enhanced Electronic Mail (PEM) is a common encoding file format for security certificates that contains an included base64 (ASCII) encoded block of data encapsulated within it.

Still Need Help?

Have the following available when calling Lexmark Technical Support;

  • Printer model(s)

  • Printer serial number


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