Resolving Tachyon integration issues
Unable to access Tachyon Explorer on the Tachyon server but can from other computers
If you encounter a 401.1 error (Unauthorized: Access is denied due to invalid credentials when you try to access a Web site that is part of an IIS 6.0 application pool) when you cancel the Login dialog after the system prompts you for your authentication credentials, Microsoft has published an article to correct this (https://support.microsoft.com/en-us/help/896861/you-receive-error-401-1-when-you-browse-a-web-site-that-uses-integrate).