ajaxcontroltoolkit not work with subdomain. I have one Masterpage, and the subdomain in the master page ajaxcontroltoolkit not work. For Example http://123tiendas.com/subdominios/articulo/default.aspx?id=2021 work fine. http://articulo.123tiendas.com/?id=2021 get multiple errors and ajaxcontroltookit not work