We made integration for one of our clients and everything was great π
But recently the integration stopped working, as it turned out on the other side they changed the Tls protocol. They changed 1.2 and added 1.3.

NAV2017 -
ServicePointManager.SecurityProtocol(SecurityProtocol.Tls12);
The client's operating system is Windows Server 2016, as far as I understand we can't use 1.3.
Tried changing the queuing in Ciper Suite Order but that didn't help.

From the list of protocols to be supported, we have the first two, but no third protocol - ECDHE - RSA - CHACHA20 - POLY1305
Is there any ideas to solve this problem, any help would be greatly appreciated. Thank you!
Answers