http://blogs.msdn.com/syedi/archive/2009/06/06/how-to-by-pass-the-oob-login-aspx-page-of-a-fba-site-when-logging-in-from-external-site-with-right-credentials.aspxIn the absence of valid cookie the users are redirected to the Login page in the FBA site. If you want to bypass the login page and want to validate the user before the successful login then we need to validate the user in the OnLoad event of login pageen-USCommunityServer 2.1 SP1 (Build: 61025.2)