My domain is: photozync.is-a-geek.com
I executed the c# code: stream.AuthenticateAsServer(Service.HTTPSCertificate);
using the pfx file to load the LetsEncrypt certificate to Service.HTTPSCertificate
It produced this output:
A call to SSPI failed, see inner exception.
The Local Security Authority cannot be contacted
My web server is (include version): Home grown
The operating system my web server runs on is (include version): Windws 10 1903
I can login to a root shell on my machine (yes or no, or I don’t know): yes
I’m using a control panel to manage my site (no, or provide the name and version of the control panel): no
If I create a self signed certificate and load it into Service.HTTPSCertificate it works as expected.