diff --git a/apps/desktop/src/main.tsx b/apps/desktop/src/main.tsx
index d7cc970..e1a8708 100644
--- a/apps/desktop/src/main.tsx
+++ b/apps/desktop/src/main.tsx
@@ -447,7 +447,8 @@ function App() {
       // ignoramos e seguimos para o handshake
     }
     const persona = (config?.accessRole ?? accessRole) === "manager" ? "manager" : "collaborator"
-    const redirectTarget = persona === "manager" ? "/dashboard" : "/portal"
+    // Envia para a página de diagnóstico para validar cookies/sessão
+    const redirectTarget = persona === "manager" ? "/dashboard" : "/portal/debug"
     const url = `${resolvedAppUrl}/machines/handshake?token=${encodeURIComponent(token)}&redirect=${encodeURIComponent(redirectTarget)}`
     window.location.href = url
   }, [token, config?.accessRole, accessRole, resolvedAppUrl, apiBaseUrl])