SharePoint Authentication prompt

SharePoint Windows Authentication fails on other addresses than localhost

Reading Time: 2 minutes. This post describes how to fix Windows Authentication on a SharePoint server failing on other addresses than localhost. Symptoms You get the standard Windows/Basic Authentication prompt when accessing your SharePoint site, but the site won’t accept your credentials when your accessing the site using an address like http://website. However, using address like http://localhost works fine (but of course may cause other problems). You also get event log entries like this (most likely in System -category): The program w3wp.exe, with the assigned process ID, could not authenticate locally by using the target name HTTP/WEBSITENAME. Posts Related to “SharePoint Windows Authentication fails on […]