Windows 10: Anyone else having issues with Windows 11 not recognizing certificates on their CAC card...

My smartcard reader is not recognizing the CAC card nor the certificates on the card when plugged into my Alienware R13 desktop computer. It works fine on my Surface 9 Pro, so its not the reader or card. I've tried repairing, updating, and uninstalling/reinstalling the drivers without success. I've also changed security settings, etc. related to antivirus, core memory integrity, and so forth without it working either. I've also uninstalled/reinstalled the DoD root certificates.Card reader stopped working after a Windows security update.I'm currently running Windows 11 Home version 10.0.26100 B

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CAC Card Certificates not showing up on Windows 11 Home edition.

CAC Card Certificates not showing up on Windows 11 Home edition. Long Story short I just purchased a Surface Pro 9 to use as a work computer. (Found a good deal). I am in the military and need a CAC Card Reader to access different websites for work. I have downloaded the drivers and updated the Firmware for my CAC Card Reader but not been able to log on to the websites I need to. Every time I try, I get the no Certificates found error. When I look at my certificates in the internet setting the certificates are present like they should be. I have never had this issue Windows but now cannot seem to get things to work. Has anyone else experienced this? If so, how did you fix the situation to get your CAC Card to work?

 

CAC certificates not recognized on personal computers

Hi, my cac stopped working with the error "No valid client certificate found in the request. No valid certificates found in the user's certificate store. Please try again after closing and reopening the browser and choose a different authentication method." My local DEERS office gave me a new CAC and exact same issue persists. I have tried different CAC readers, different computers, every browser I have, cleared my cache, certs, and history, restarted my computer, restarted the smart card reader service, updated drivers, rolled back drivers, and allowed all permissions on my CAC reader. Only machine that has recognized I have valid certs is my government account on my government computer. What on earth can I do now?

 

Smart Card not reading CAC

Hi,

After a microsoft update a few months ago my smart card reader no longer recognize my CAC. When I would try to log onto military sites, it would say no certificates present. On activclient (middleware), it would say no card reader detected. I am using a
SCR331 and a Stanley global as card readers. However, I know my CAC and the readers are good because both work with no issues on my laptop and at work. I also know my desktop (which is the issue) use to work fine until I did the update. When I rolled back
the update, the issue was still present.

I have read and used all the steps and tips I could find on Military CAC to no avail. Under devices, I can see both smart card readers and both have newest drivers. Under services, certificates and smart card readers are running and automatic.

I have seen this very issue posted many times on the help forms and the few actual suggestions I have tired. Helping to find a solution would not only help me but many others with this same issue.

Please help! Thank you.