We are trying to transfer our server into a new VPS. In the old one, we are using a Let’s Encrypt SSL certificate. In the new one, we generated a new certificate from Lets’ Encrypt.
When we try to change our server IP address from CloudFlare DNS records, we get a Handshake Error. There are 4 possible reasons on CloudFlare help documents on this subject, but none of them solves our problem.
Our new certificate is valid, 443 port is open on the new server. In available ciphers, we have defined the following on the new server:
Anybody can help us understand the reason?