Tried to fix auth. Still not working.

Teknik/Areas/Profile/Controllers/ProfileController.cs

@@ -139,8 +139,8 @@ namespace Teknik.Areas.Profile.Controllers
                         }
                         HttpCookie authcookie = FormsAuthentication.GetAuthCookie(model.Username, model.RememberMe);
                         authcookie.Name = ".TeknikAuth";
-                        authcookie.Domain = "." + Config.Host;
-                        Response.Cookies.Add(authcookie);
+                        authcookie.Domain = Config.Host;
+                        Response.AppendCookie(authcookie);
 
                         if (string.IsNullOrEmpty(model.ReturnUrl))
                         {

Teknik/Web.config

@@ -18,7 +18,9 @@
   </appSettings>
   <system.web>
     <customErrors mode="Off" />
-    <authentication mode="Forms" />
+    <authentication mode="Forms">
+      <forms domain=".teknik.io" loginUrl="~/Areas/Profile/Views/Profile/ViewLogin" path="*/*" timeout="2880" name=".TeknikAuth" />
+    </authentication>
     <compilation debug="true" targetFramework="4.5.2" />
     <httpRuntime targetFramework="4.5.2" maxRequestLength="1048576" />
     <pages buffer="true" enableViewState="false" />