Require SSL must not be checked for either Default Web Site or for any application (ex: AdamsAdmin, AdamsWeb, AdamsBridge, etc) under that. You can check the SSL Settings for each to see that it isn’t.
IIS Manager must be closed
Add a web.config file to the web server's root directory (ex: c:\inetpub\wwwroot) with the below content or the configuration section only if the web.config already exists. The web server's root directory is typically c:\inetpub\wwwroot even if you have installed Adams web applications on another drive such as e:\inetpub\wwwroot.