WCF error: “The X.509 certificate CN=localhost chain building failed …”

Question

I\'m getting this error while attempting to make my WCF client and server talk to each other.

The X.509 certificate CN=localhost chain building faile

Answer 1

I fixed the problem by turning off validation in my code like this:

client.ClientCredentials.ServiceCertificate.Authentication.CertificateValidationMode = 
System.ServiceModel.Security.X509CertificateValidationMode.None;

Where client is an instance of my service reference.