Roles not working (not persisting?)

So I'm working on essentially a legacy app.  I've built a log in page which seems to work fine, code is:

 if (Membership.ValidateUser(nameTest, passwordLogIn.Text))
                {

                    if (Roles.IsUserInRole(nameTest, "Admin"))
                     Response.Redirect("/admin.aspx");
                    else if (Roles.IsUserInRole(nameTest, "Manager"))
                        Response.Redirect("/admin.aspx");
                    else if (Roles.IsUserInRole(nameTest, "User"))
                        Response.Redirect("/mydonations.aspx");
                }

And then in the admin page I test for roles as follows:

 protected void Page_Load(object sender, EventArgs e)
        {
            if (!IsPostBack)
            {
                detailsPlaceholder.Visible = false;
                createnewVehiclePlaceholder.Visible = false;
            }
          if (!(User.IsInRole("Admin") || (User.IsInRole("Manager"))))  
            {
               Response.Redirect("/Default.aspx");
            }

        }

Which fails no matter what I try, and as far as I can see the roles are always 0.  Here's my web.config:

<?xml version="1.0" encoding="utf-8"?><configuration><configSections></configSections><connectionStrings><add name="ApplicationServices" connectionString="Data Source=laptop;Initial Catalog=CAA;Integrated Security=True" /><add name="CAAConnectionString" connectionString="Data Source=laptop;Initial Catalog=CAA;Integrated Security=True" providerName="System.Data.SqlClient" /><add name="CAAEntities" connectionString="metadata=res://*/CAADataEntity.csdl|res://*/CAADataEntity.ssdl|res://*/CAADataEntity.msl;provider=System.Data.SqlClient;provider connection string=&quot;data source=laptop;initial catalog=CAA;integrated security=True;multipleactiveresultsets=True;App=EntityFramework&quot;" providerName="System.Data.EntityClient" /></connectionStrings><system.web><authentication mode="Forms"><forms loginUrl="~/login.aspx" timeout="432000" /></authentication><membership><providers><clear /><add name="AspNetSqlMembershipProvider" type="System.Web.Security.SqlMembershipProvider" connectionStringName="ApplicationServices" enablePasswordRetrieval="false" enablePasswordReset="true" requiresQuestionAndAnswer="false" requiresUniqueEmail="true" maxInvalidPasswordAttempts="5" minRequiredPasswordLength="6" minRequiredNonalphanumericCharacters="0" passwordAttemptWindow="10" applicationName="/" /></providers></membership><profile><providers><clear /><add name="AspNetSqlProfileProvider" type="System.Web.Profile.SqlProfileProvider" connectionStringName="ApplicationServices" applicationName="/" /></providers></profile><roleManager enabled="true" defaultProvider="AspNetSqlRoleProvider" ><providers><clear/><add connectionStringName="ApplicationServices"
          applicationName="/"
          name="AspNetSqlRoleProvider"
          type="System.Web.Security.SqlRoleProvider"/></providers></roleManager><httpModules><add name="DomainServiceModule" type="System.ServiceModel.DomainServices.Hosting.DomainServiceHttpModule, System.ServiceModel.DomainServices.Hosting, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" /></httpModules><compilation debug="true" targetFramework="4.0"><assemblies><add assembly="System.Design, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B03F5F7F11D50A3A" /><add assembly="System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089" /><add assembly="System.Speech, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" /><add assembly="System.Data.Entity, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" /><add assembly="System.Web.Entity, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089" /></assemblies></compilation><httpHandlers></httpHandlers><pages><controls><add tagPrefix="telerik" namespace="Telerik.Web.UI" assembly="Telerik.Web.UI" /><add tagPrefix="ajaxToolkit" assembly="AjaxControlToolkit" namespace="AjaxControlToolkit" /></controls></pages></system.web><system.webServer><validation validateIntegratedModeConfiguration="false" /><handlers></handlers><modules runAllManagedModulesForAllRequests="true"></modules></system.webServer><system.serviceModel><serviceHostingEnvironment aspNetCompatibilityEnabled="true" multipleSiteBindingsEnabled="true" /></system.serviceModel><appSettings /></configuration>

I'd be deeply grateful if anyone can spot what's going on... Thank you!!!