Getting 'HTTP Error 403.4 - Forbidden The page you are trying to access is secured with Secure Sockets Layer (SSL)'. Resolved By: After trying with the below settings: 1. Disable SSL Settings in Features View of IIS Manager of the Application. 2. Check Application Pool matches the .Net version (Here ASP.NET v4.0) 3. Ensured 'Connect As' Application user (pass through authentication) It was just had to ensure the application name in IIS Manger matches with the application name in the URL in 'Project Url' textbox in the Server section in 'Web' tab of properties of the Web Application project in Visual Studio 2012.