[Fiddler] The connection to com failed.

[Fiddler] The connection to '<the site>.com' failed. 
System.Security.SecurityException Failed to negotiate HTTPS connection with server.fiddler.network.https> HTTPS handshake to <the site>.com (for #3) failed. System.IO.IOException Unable to read data from the transport connection: 

An existing connection was forcibly closed by the remote host. < An existing connection was forcibly closed by the remote host 

Resolution - 

Go to  Tools > Telerik Fiddler Options > HTTPS It's set to ;ssl3;tls1.0 Add tls1.2

Kinldy refer below image for reference.

Warm Regards

Sachin Kalia

Categories: Bug & Error Resolution , WCF and WebAPI