IIS: Disable Strict Name Checking
This is useful in many scenarios. In this scenario, it’s more useful for disable to keep on prompting credentials in SharePoint 2013 Environment.
In this method, you need to add your domain as an exception list to IIS for not checking the FQDN for loopback.
Open the RegEdit.
https://lh3.googleusercontent.com/-U-rCD8Ih2jQ/WLU9ArIgoRI/AAAAAAAAPhA/4wAsTj6oDxc/image_thumb%25255B2%25255D.png?imgmax=800
And navigate to: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Lsa
Click on MSV1_0
https://lh3.googleusercontent.com/-iolaT2sZ0GY/WLU9CC8eIvI/AAAAAAAAPhI/h2oqxdJDckU/image_thumb%25255B6%25255D.png?imgmax=800
Add new Mult-String Value
Add BackConnectionHostNames
https://lh3.googleusercontent.com/-pQk-iPfxCm0/WLU9DyQh2DI/AAAAAAAAPhQ/Xn6_eIDvSHs/image_thumb%25255B9%25255D.png?imgmax=800
Then you will see that it's added to the registry.
https://lh3.googleusercontent.com/-mX6T6SkiSow/WLU9FVtqktI/AAAAAAAAPhY/_bvh7jBJzws/image_thumb%25255B12%25255D.png?imgmax=800
You can double-click and add your fully qualified domain names (one per line) that will be working as an exception.
https://lh3.googleusercontent.com/-QXkb2z8O0PQ/WLU9G4ENrxI/AAAAAAAAPhg/yuUVQ2Jla-w/image_thumb%25255B15%25255D.png?imgmax=800
Then you can save and restart the IIS.