May need to raise the issue with the print vendor.
https://kmbs.konicaminolta.us/kmbs/support-downloads
--please don't forget to upvote and Accept as answer if the reply is helpful--
July Cumulative Update for Windows Server 2016 (KB5004238) Printer Authentication
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(70.4, 47%, 16%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ECR%3C/text%3E%3C/svg%3E)
Chris Rossetti
21
Reputation points
We have recently updated our Server 2016 Domain Controllers with (KB5004238) 2021-07 Cumulative Update for Windows Server 2016 for x64-based Systems and now our users are failing authentication via smart card when trying to scan to mail on Konica Printers. When the patch is removed from the domain controller, authentication is passed successfully. Has anyone else experienced a similar issue?
Windows for business | Windows Server | User experience | Other
Answer accepted by question author
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![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(128, 8%, 22%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EA%3C/text%3E%3C/svg%3E)
Anonymous2021-07-21T13:16:06.02+00:00
1 additional answer
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![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(35.2, 54%, 13%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ECB%3C/text%3E%3C/svg%3E)
Carolyn Bounds 1 Reputation point2021-07-22T21:03:18.803+00:00 We're having the same issue except with HP Multi-Function printers. After installing KB5004238 on our windows 2016 domain controllers smart card authentication started failing on our HP MFPs. Removing the patch restored functionality. The error message on the printer is
Kerberos code -1765328370
That code indicates that the KDC has no support for encryption type. We're planning to upgrade our MFP firmware and test again over the weekend.
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![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(25.6, 9%, 12%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EJK%3C/text%3E%3C/svg%3E)
James Karch 1 Reputation point2021-08-09T12:57:18.103+00:00 Did the HP MFP firmware fix the authentication issue with the DCs?
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