http://blogs.msdn.com/lcris/archive/2008/02/21/sql-server-2005-how-to-debug-login-failures-18456-anyone.aspxIn my series of new posts on old topics, I decided to gather today several pieces of information that I think will help in debugging SQL Server login failures. Although most information should remain useful for future versions as well, some of it mayen-USCommunityServer 2.1 SP1 (Build: 61025.2)