I have to created a sample project in which client and server communicate with netHttpBinding over https(wss). My code and configuration is working perfectly fine with http binding. But when I an using HTTPS then it gives error as followed

I’m working with a class library named ServiceRef.dll that includes a WCF service reference. This library is utilized across various parts of our application, such as web applications and other class libraries. It contains necessary <bindings> and <client endpoints> for the WCF service.

I have a .net framework 4.8 project, which is calling a .net framework 4.8 wcf service. I want to use https, but for now I have only self signed certificate, thus I simply ignore all validation errors: