No Client Certificate Presented (AKO MAC)

Are you experiencing issues accessing a website due to a 'no client certificate presented' error message? If so, it may be related to the lack of trust in the root certificate of the certificate authority. In this article, we'll guide you through troubleshooting steps to resolve this issue on your Mac.

Step 1: Check Certificate Trust Settings

Firstly, open Keychain Access, which can be found in the Utilities folder within the Applications folder. If the error persists, quit Safari and remove any existing certificate data from Keychain Access. After doing so, test the issue again to see if the problem has been resolved.

Step 2: Override Trust Policies

To override the trust policies, select the desired settings from the pop-up menus. For more information on Certificate trust policies, refer to our dedicated article.

Step 3: Verify Certificate Information

Select the certificate in Keychain Access and choose File > Get Info. Click the Trust disclosure triangle to display the trust policies for the certificate. If prompted, enter the name and password of an administrator user on your computer.

Step 4: Add Root Certificate to Keychain

Drag the root certificate icon to the desktop or drag the certificate file onto the Keychain Access icon and double-click it. Select a keychain from the pop-up menu and click OK.

Common Cause of Error

The most common reason why a certificate isn't accepted is that the certificate authority's root certificate isn't trusted by your computer. To resolve this, you need to add the certificate authority to a keychain and set the certificate trust settings.

Troubleshooting Tip for OS X Yosemite Users

If you're using OS X Yosemite, check Keychain Access to see if the certificate is trusted. It's possible that the root certificate of the certificate authority isn't recognized by your computer, which can cause this error message.

By following these steps, you should be able to resolve the 'no client certificate presented' issue and successfully access the website you're trying to visit.

No client certificate presented ako mac