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Chrome and Firefox users get : Secure connection failed" SSL_ERROR_NO_CYPHER_OVERLAP when TLS1.3 is enabled

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When TLS 1.3 is enabled both Chrome and Firefox browsers are unable to connect to the NetScaler CAG vserver and error with :


"Secure connection failed" SSL_ERROR_NO_CYPHER_OVERLAP"


I had a look at https://discussions.citrix.com/topic/399415-browser-handshake-failure/


Using the ciphers recommended for the SSLLABs.


Disabling TLS1.3 resolves the issue.  I had thought this issue had been resolved in the latest 12.1 build but obviously not.





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