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:
For Big Sur, please refer to Add certificates to a keychain using Keychain Access on macOS Big Sur
For Catalina, please refer to Add certificates to a keychain using Keychain Access on macOS Catalina
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.
Save the certificate to the ApplicationsCitrix ICA Clientkeystorecacerts folder (create this folder if it does not exist):

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