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How to register your CAC to AKO

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CAC Registration

CAC Registration on AKO is often as simple as logging in. AKO can validate your identity and register your CAC to your account during the log-in process so just insert your CAC into your reader, browse to the portal, and try to sign in with your CAC and PIN. If you successfully log in then your CAC becomes registered to your account automatically.

CAC Registration Checklist

A CAC enabled computer with a smart card reader
Have an existing AKO/DKO account
Know your access credentials; PIN and Username/Password
*ActivClient is only required for Firefox users and users of previous Windows versions

Manual Registration

Some users might encounter an issue with the automatic CAC registration process and will need to complete the CAC registration wizard to successfully register their CAC to their account.

  1. Browse to the portal; https://www.us.army.mil/
  2. Log in to AKO/DKO using your Username & Password
  3. Open the My Account menu
  4. Select CAC/Certificate Registration
  5. Click Register
  6. Enter Your Password
  7. Print the confirmation screen as desired

ActivClient Software

If you are attempting to register your CAC from a personal computer you might need the ActivClient software for your CAC certificates to be seen by AKO. For information about ActivClient please see WHAT SOFTWARE DO I NEED TO USE MY CAC?.

Certificate Availability

The certificates on your CAC must be made available to windows before you will be able to use them. If you have installed the ActivClient software and still do not see the certificates in your list please see HOW TO MAKE YOUR CAC CERTIFICATES AVAILABLE for information on how to make your certificates available to windows.

403 Access Forbidden

If you get this error during CAC registration you will need to clear your temporary internet files, close all open browser windows, and then try again. For more information on 403 Access Forbidden errors please see ERROR: “403: ACCESS FORBIDDEN”.

If you need assistance clearing your temporary internet files please check CLEARING MY BROWSER’S TEMPORARY INTERNET FILES.

More Information

For more information about CAC registration and requirements for AKO/DKO please see the CAC Resource Center located at https://www.us.army.mil/suite/page/241504

For information about using your CAC to access AKO using Firefox please see our Firefox resource page at https://www.us.army.mil/suite/page/610892

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