If you open a WCF Solution that uses a web site to host the WCF services and the services cannot be browsed when opening using a web browser (showing HTTP error 403.1 not found), try turning on HTTP Activation feature.
On Windows server, go through server manager.
On Windows desktop, search for turn Windows features on or off, Under .NET Framework Advanced Services -> WCF Services -> HTTP Activation. Check HTTP Activation to enable it, and click OK.
This really wasn’t apparent at first and I thought there was some issues with the config files.