I have the domain lopezsancho.cat hosted with traefik2 and Let’s Encrypt certificate. With gray clouded and/or Cloudflared paused all subdomains work flawlessly. However, if I active orange cloud in few seconds appears the error SSL_ERROR_NO_CYPHER_OVERLAP in Firefox or ERR_SSL_VERSION_OR_CIPHER_MISMATCH in Chromium. I have tested in different computers with the same result.
I followed this guide Community Tip - Fixing ERR SSL VERSION OR CIPHER MISMATCH in Google Chrome with the same result.
My settings is:
### Your SSL/TLS encryption mode is Full (strict) I tested also with Full or Off with the same results
### Always Use HTTPS ON
### HTTP Strict Transport Security (HSTS)
Max-Age: 3 months
Include subdomains: Off
I disabled it with the same result
### Minimum TLS Version 1.2
### Opportunistic Encryption On
TLS 1.3 On
Automatic HTTPS Rewrites On
And finally Universal SSL disabled. If I enable it then works well with the Cloudflare’s SSL certificate
Thanks in advance for your help. I’m stucked wih this from weeks!