UFT API Testing: Could Not Create SSL/TLS Secure Channel

Question

I am getting Could Not Create SSL/TLS Secure Channel in UFT API Testing. we specified HTTP RequestHeaders in event handlers and End Point address as well. I could not give much details as we have restricted to provide. Any Idea why we are getting this error? I referred to this but I'm still getting error after providing:

ServicePointManager.ServerCertificateValidationCallback += (sender, certificate, chain, errors) => true;

Answer 1

Maybe its an certificate incompatibility, e.g the certificate only allows TLS 1.2 while your client only supports TLS 1.1, or other algorithms.