Troubelshooting: Event 2436 for SharePoint Services 3 Search

You may experience SharePoint Search issue when browsing http://companyweb on SBS 2008 server and specifically, you are seeing below 2436 errors in your Application event log every several minutes. If you want to disable Loopback Check feature to work around this issue, please refer to the Method 2 in the following KB896861 You receive error 401.1 when you browse a Web site that uses Integrated Authentication and is hosted on IIS 5.1 or IIS 6