Why it's so slow when a wcf client connects to the service?

Question

I met a performance issue when using the WCF service.

Here\'s the story:

1. I wrote a self-hosted WCF service which is hosted by a console application

Answer 1

We experiences the same, I figured out that it is the client that sleeps up to 14 seconds before actually opening the TCP connection.

A simple call to

binding.UseDefaultWebProxy = false;

solved this.