The issue is resolved

Hello,

There're issues with AWS EC2 infrastructure in Europe region:
https://status.aws.amazon.com/#EU_block


We are working to resolve the issue ASAP

I can confirm that our software does support TLS 1.2

If TLS 1.0 works for you, but TLS 1.2 doesn't this should be investigated. It might be that when you turn off TLS 1.0, you also disable some cipher suites, that were the only ones supported by both client and server.

Network capture of TLS handshake can shed some light on the problem