SharePoint 2013 Keeps Prompting For Credentials (DisableLoopbackCheck - BackConnectionHostNames - Logon Failure 401.1 - Access Denied )
Problem : When you access a SharePoint site collection, it keeps on prompting for authentication and eventually give you an Access Denied error. Reason : This is a feature that prevents access to a web application using a fully qualified domain name (FQDN) if an attempt to access it takes place from a machine that hosts that application. The end result is a 401.1 Access Denied from the web server and a logon failure in the event log. Solution: There are 2 ways to solve this, ( 1 ) the correct way and ( 2 ) the fast and easy way. 1 - The correct way (test/production servers) : Specify the host names that needs to do loop back check in the registry – BackConnectionHostNames. This is the correct way and is more secure. http://support.microsoft.com/kb/896861 - Open regedit.exe - Navigate to HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Lsa\MSV1_0 - Create a new multi-string value and name it " BackConnectionHostNames" ...