I have a cisco access control server in my environment.
I could access the GUI using Microsoft Edge browser, but recently I get the error below whenever I try to log onto the ACS server.
The connection for this site is not secure ERR_SSL_VERSION_OR_CIPHER_MISMATCH Unsupported protocol The client and server don't support a common SSL protocol version or cipher suite
I have tried different browsers and issue still persists.
I have also cleared browser cache and the SSL state too.
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get old browser IE and test :
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