How can I troubleshoot 'SSL connection could not be established' error with Genesys Cloud API in C#?

Question

I'm calling the genesys cloud which shows the error

System.Net.Http.HttpRequestException
The SSL connection could not be established, see inner exception.

The inner exception is showing that

System.IO.IOException
Unable to read data from the transport connection: Connection reset by peer.

I'm using Httpclient in my project and I couldn't find the issue from the search.

I tried searching the google and couldn't find an soulution