My domain is: panoramagas.com (the one is not working)
i am getting SSL using Woocommerce, and have a problem using a LetsEncrypt SSL 256 bit certificate … i have replicate the whole site on panoramagas.temporary.es using a LetsEncrypt SSL 128 bit certificate and the problem is gone, so it works pefect.
so, it seems the only difference is that one uses 256 bit and doesnt work and the one using 128 bit works just fine.
i have tried several Stripe plugins for Woocommerce or just Payment plugins and have the same results. (first site not working and second one yes)
both sites use TLS 1.2
hosting of the first site (not working) is hosteurope.es and the second one is Dreamhost.com
Let’s Encrypt certificates are not “256 bit” or “128 bit”. The thing that’s measured as 128-bit or 256-bit is the cipher in the ciphersuite negotiated between the web browser and the web server. This isn’t controlled or chosen by Let’s Encrypt and isn’t mentioned in the certificate in any way. It’s normally a matter of ciphersuite configuration on the web server.
If you want to either require or forbid the use of 128-bit or 256-bit encryption on your HTTPS site, you’ll probably need to change the ciphersuite selection in your web server configuration.