Error 53 'Your CAC certificates are invalid and access is revoked'
windowsError 53
Symptoms
Error 53 on PIV activation or login.
Likely cause
Certificates were revoked because of branch change, retirement, contract end-date change, or expiration.
Fix
1. Go to an ID card office for a new CAC.
2. As a workaround, try 32-bit Internet Explorer with the standard IE configuration applied.
Sourced from militarycac.com. Rewritten for clarity.
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