Cloudflare All-time-classic: How to fix Error code: SSL_ERROR_NO_CYPHER_OVERLAP

thank you very much.

I turned of “universal” yesterday and still see no changes at all. maybe I need to wait a little longer…it is not 24hrs yet.

Firefox still gives me:

Secure Connection Failed>

An error occurred during a connection to sub.sub.domain.xy Cannot communicate securely with peer: no common encryption algorithm(s).

Error code: SSL_ERROR_NO_CYPHER_OVERLAP

The page you are trying to view cannot be shown because the authenticity of the received data could not be verified.
Please contact the website owners to inform them of this problem.

and Chrome says:

This site can’t provide a secure connection

sub.sub.domain.xy uses an unsupported protocol.

ERR_SSL_VERSION_OR_CIPHER_MISMATCH

Hide details

Unsupported protocol

The client and server don’t support a common SSL protocol version or cipher suite.

My ssl encryption mode is FULL. SSL Recommender is on. The EdgeCertificate Tab now says “No Certificates”, always use https is off, hsts if off, min TLS is 1.0, tls1.3 is enabled, automatic https rewrites is on, CT monitor is on, Universal SSL is disabled.

any ideas?