Connection Failed issue, NEED HELP PLEASE

[shomen.ahmed]

Hello I need support here, my web page was down for a couple of days now, I am not able to fix it

Below is the error :

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

Error code: SSL_ERROR_NO_CYPHER_OVERLAP

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My website works before, recently, IP was changed by the internet provider and I changes that IP in DNS settings and afterwards the webpage not working

Below steps was checked :

Your SSL/TLS encryption mode is Full (strict) → Enabled

SSL/TLS Recommender → Marked Yes

Edge Certificates → Active status

Always Use HTTPS → Marked Yes

Opportunistic Encryption → Marked Yes

TLS 1.3 → Marked Yes

Automatic HTTPS Rewrites → Marked Yes

Certificate Transparency Monitoring → Marked Yes

Origin Certificates => HOST: *.travellersdairy.com, travellersdairy.com (2 hosts)

Expire: Jul 26, 2036

Authenticated Origin Pulls → Marked Yes

[fritex]

@shomen.ahmed

SSL_ERROR_NO_CYPHER_OVERLAP

Could this help a bit?:

Community Tip - Fixing SSL ERROR NO CYPHER OVERLAP in Mozilla

Error Try the suggestions in this Community Tip to help you fix SSL ERROR NO CYPHER OVERLAP in Mozilla. Background A website using HTTPS performs a series of steps between the browser and the web server to ensure the certificate and SSL/TLS connection is valid. These include a TLS handshake, the certificate being checked against the certificate authority, and decryption of the certificate. If Mozilla detects an issue, it might display “SSL_ERROR_NO_CYPHER_OVERLAP” which prevents access to the…

3 Ways to Fix the “SSL_ERROR_NO_CYPHER_OVERLAP” Error

@shomen.ahmed

IP was changed by the internet provider

Does it mean your website is on a new Web server?

• therefore, which could have some Firewall and not let the Cloudflare either to connect?
• or something other in between like misconfigured SSL certificate and accepted SSL ciphers (maybe RSA, but not ECDSA or vice-versa) from your hosting provider vs. the Cloudflare Origin CA certificate which you have used (maybe you have to re-install it again?)?
• or the TLS version set to to high, maybe lower it to TLS 1.2 at Cloudflare dashboard?