I am developing a WCF service, running IIS6 on Window server 2003. I have built a test client to talk to the WCF service and I am getting the error below. I have been lookin
I had the same issue. For me I noticed that the https is using another Certificate which was invalid in terms of expiration date. Not sure why it happened. I changed the Https port number and a new self signed cert. WCFtestClinet could connect to the server via HTTPS!