http://developers.de/blogs/damir_dobric/archive/2008/08/18/ajax-callbacks-and-forms-authentication.aspxWhen implementing ASP.NET applications which make usage of AJAX and Windows Forms Authentication, there are few critical issues you have to be aware of. in this post you can find few very interesting information related to AJAX and FormsAuthenticationenCommunityServer 2008 SP1 (Build: 30619.63)http://developers.de/blogs/damir_dobric/archive/2008/08/18/ajax-callbacks-and-forms-authentication.aspx#326731Thu, 16 Aug 2012 00:06:26 GMT7e491611-45ad-4dae-a68f-c4cb64439510:326731Ulhan<p>If you haven&#39;t done so already, I think you just need to set the dafuelt url in the forms tag (web.config like so)&lt;forms loginUrl=&quot;blablabla.aspx&quot; dafueltUrl=&quot;YourDefaultPage.aspx&quot; /&gt;Give it a go and let us know how you get on. &nbsp;+8Was this answer helpful?</p> <div style="clear:both;"></div><img src="http://developers.de/aggbug.aspx?PostID=326731" width="1" height="1">