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Error messageThis error concerns the certificate of the client accessing the site. It is not simply a lack of internet access or a reason to skip TLS checks.

ERR_BAD_SSL_CLIENT_AUTH_CERT in Chrome

ERR_BAD_SSL_CLIENT_AUTH_CERT

The site requires a client certificate and Chrome could not use it to authenticate you. Check the address and whether you need a managed certificate.

Try this first

1 quick checks · ~3 min

  1. Check that you opened the correct addressDo not install certificates offered through unfamiliar messages or links.

Find your situation

See all the clues. Choose the one that matches what you observe.

Ordinary public website

If you did not expect certificate authentication, verify the official address first.

Site requiring a certificate

An organization’s access may depend on an assigned and managed certificate.

Step-by-step solutions

01

Check that you opened the correct address

  • Estimated time: 3 min
  • Easy
  • Low risk

Do not install certificates offered through unfamiliar messages or links.

  1. Return to the service’s known official address and confirm that you did not open another domain or an organization-only entry point.

  2. If a public site did not previously require a certificate, check its official access instructions. Do not ignore security warnings or enter credentials at a questionable address.

Sources:
02

Check the authorized certificate for that access

  • Estimated time: 5 min
  • Easy
  • Low risk

Use the service administrator’s instructions.

  1. Confirm whether the work, bank or organization site requires a client certificate and which one belongs to your account and device. If Chrome offers a selection, use only the certificate assigned for that access.

  2. If the certificate is missing or not accepted, ask its administrator to review provisioning or renewal. Do not delete device certificates, export private keys or disable verification to gain access.

Sources:
Next step

Still not working?

If it continues, contact the site or certificate administrator with the message and address, without sharing private keys or credentials. Do not use Chrome options that bypass TLS or certificate validation.

Sources

Documentation behind this guide. Editorial recommendations are identified separately.

Source review: . A documentation review, not a physical hardware test.