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Glam Fame Journal

Why is my CAC reader not reading my card?

Author

Sophia Hammond

Updated on April 05, 2026

Why is my CAC reader not reading my card?

CAC is not recognized. Make sure the card reader is properly connected to the USB port. Try removing and re-inserting the card. Upgrade the card reader’s firmware (you will need to update the firmware from a Windows computer). Verify that the CAC shows up in Keychain Access (located in /Applications/Utilities).

How do I get my CAC card reader to work?

CAC (see note below) Card reader….You can get started using your CAC by following these basic steps:

  1. Get a card reader.
  2. Install middleware, if necessary.
  3. Install DoD root certificates with InstallRoot (32-bit, 64-bit or Non Administrator).
  4. Make certificates available to your operating system and/or browser, if necessary.

How do I know if my smart card reader is working?

How to Test a Smart Card Reader

  1. Click “Start.” Video of the Day.
  2. Click “Control Panel.”
  3. Click “Device Manager.”
  4. Right-click the icon for your smart card reader. Click “Scan for Hardware Changes.”
  5. Right-click the icon for your smart card reader.

How do I update my smart card reader?

  1. Click Start.
  2. Right-click Computer, and then click Properties.
  3. At the left pane, click Device Manager.
  4. Double-click the Smart Card Readers category.
  5. Double-click Integrated Smart Card Reader or Microsoft Usbccid Smartcard Reader (WUDF).
  6. Click the Driver tab, then click Update Driver Software….

Why did my CAC card reader stop working?

Inaccurate Driver on the Computer The computer might not be recognizing the card reader as it should. Try plugging in the smart card reader into another computer and see if the card reader still won’t work. You can also update all Windows drivers on your computer then restart it again.

Why does my CAC not work?

If you are trying to authenticate with your CAC, please clear your SSL sessions. In IE go to the Tools-Internet options. Select the content tab and press the “Clear SSL State button.” If this does not work or you are unable to complete this close all open browser windows and try again.

Why does my CAC reader not work on my Mac?

Visit the USB-C Readers page to verify the CAC reader you have is Mac friendly. “Some, not all” CAC readers may need to have a driver installed to make it work. NOTE: Readers such as: SCR-331 & SCR-3500A may need a firmware update (NO OTHER Readers need firmware updates).

Why is my smart card not working?

What is smart card error?

This could be due to accidentally configure the Windows system to allow only smart card login. Cards are a portable, secure and a tamper-proof way to provide security solutions for tasks such as client authentication, logging on to domains, code signing, and securing e-mail.

How do you reset a CAC reader on a Mac?

Here is how to clear them:

  1. Select the 3 equal lines (upper right corner of your Firefox web browser).
  2. Select: Preferences.
  3. Select: Advanced.
  4. Select: Certificates.
  5. Select: View Certificates.
  6. Select: Servers.
  7. Scroll down to: U.S. Government.
  8. Select the certificates you want removed, then click Delete…

How do I unblock my CAC card?

You will have to visit an ID card office (RAPIDS (Real-time Automated Personal IDentification System)) to get your card unblocked, updated, or replaced. The CAC owner has to be present along with a second photo ID.