Add System.Net trace

Trace.xml

<configuration> 
    <system.diagnostics> 
        <trace autoflush="true" /> 
                <sources> 
                <source name="System.Net"> 
                        <listeners> 
                <add name="System.Net"/> 
                        </listeners> 
                </source> 
                <source name="System.Net.HttpListener"> 
                        <listeners> 
                <add name="System.Net"/> 
                        </listeners> 
                </source> 
        <source name="System.Net.Sockets"> 
                        <listeners> 
                <add name="System.Net"/> 
                        </listeners> 
                </source> 
        <source name="System.Net.Cache"> 
                        <listeners> 
                <add name="System.Net"/> 
                        </listeners> 
                </source> 
                </sources> 
        <sharedListeners> 
                <add 
                 name="System.Net" 
                 type="System.Diagnostics.TextWriterTraceListener" 
                  initializeData="System.Net.trace.log" 
                 traceOutputOptions = "ProcessId, DateTime" 
                /> 
        </sharedListeners> 
    <switches> 
        <add name="System.Net" value="Verbose" /> 
        <add name="System.Net.Sockets" value="Verbose" /> 
        <add name="System.Net.Cache" value="Verbose" /> 
        <add name="System.Net.HttpListener" value="Verbose" /> 
    </switches> 
    </system.diagnostics> 
</configuration>

https://nzpcmad.blogspot.com/2018/07/certificates-remote-certificate-is.html