Error: “SSL Error 61: You have not chosen to trust 'Certificate Authority'…” on Receiver for Mac

Important! This article is intended for use by System Administrators. If you are experiencing this issue and you are not a System Administrator, contact your organization’s Help Desk for assistance and refer them to this article.

Update to the Latest Receiver Version

  • Upgrade to the latest version of Receiver to verify if this resolves the issue.
  • If you are using SHA2 certificates then the older version of Receiver does not support these certificate. Refer to CTX200114 – Citrix Receiver Support for SHA-2 to view the Receiver versions which supports SHA-2 certificates.

If this does not resolve the issue then proceed to the next section.

For information on Receiver feature updates refer to – Citrix Receiver Feature Matrix.

Missing Root/Intermediate Certificate

This error message suggests that the Mac client device does not have the required root certificate/intermediate certificate to establish trust with the certificate authority who issued the Secure Gateway/NetScaler Gateway server certificate.

Complete the following steps to resolve this issue:

  1. Open the Keychain Access in the Applications > Utilities folder:

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  2. Highlight the X509 Anchors Keychain in the menu (you might have to authenticate to do this).

  3. Browse through the Certificate Authorities to find the company that has issued the certificate that is being used by the Secure Gateway/NetScaler Gateway – for this example, Thawte Premium Server CA:

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  4. Highlight the certificate and select File > Export from the menu bar:

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  5. The default File Format should be Certificate (.cer).

    Note: You might need to rename the certificate to a .CRT extension for the client to properly identify the certificate.

  6. Save the certificate to the ApplicationsCitrix ICA Clientkeystorecacerts folder (create this folder if it does not exist):

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