diff --git a/src-tauri/src/main.rs b/src-tauri/src/main.rs
index 3efc984..fe14077 100644
--- a/src-tauri/src/main.rs
+++ b/src-tauri/src/main.rs
@@ -1 +1,5 @@
-fn main() { lr_openwrt_tool_lib::run() }
+#![cfg_attr(not(debug_assertions), windows_subsystem = "windows")]
+
+fn main() {
+    lr_openwrt_tool_lib::run()
+}
\ No newline at end of file
diff --git a/src/components/login/LoginScreen.tsx b/src/components/login/LoginScreen.tsx
index f78e4d7..773530a 100644
--- a/src/components/login/LoginScreen.tsx
+++ b/src/components/login/LoginScreen.tsx
@@ -36,6 +36,11 @@ export function LoginScreen({
         setError('');
 
         try {
+            console.log('LOGIN TRY', {
+                username: username.trim(),
+                passwordLength: password.length,
+            });
+
             const response = await loginApi.login(
                 username.trim(),
                 password,
@@ -47,13 +52,12 @@ export function LoginScreen({
             }
 
             setError('Credenciais inválidas.');
-        } catch {
-            setError('Credenciais inválidas.');
+        } catch (error) {
+            setError(`Falha no login: ${String(error)}`);
         } finally {
             setSubmitting(false);
         }
     }
-
     return (
         <div className="relative flex min-h-screen items-center justify-center overflow-hidden bg-ink-950 px-6 text-white">
             <div className="pointer-events-none absolute -left-32 top-10 h-96 w-96 rounded-full bg-blue-500/20 blur-3xl" />
diff --git a/src/services/apiClient.ts b/src/services/apiClient.ts
index 41bcfc5..fac75f2 100644
--- a/src/services/apiClient.ts
+++ b/src/services/apiClient.ts
@@ -1,21 +1,41 @@
 import type { AppSettings } from '@/types/api';
 
 const defaults: AppSettings = {
-  backendUrl: 'http://localhost:8080',
-  apiKey: 'dev-api-key',
+  backendUrl: 'http://146.59.230.190:8080',
+  apiKey:
+    'b8184608fcab419da2ce9a220ee6017daaff637b627e43ebac31b6b7c3344349',
 };
 
 const SETTINGS_KEY =
   'lr-openwrt-tool.settings';
 
+function joinUrl(
+  baseUrl: string,
+  path: string,
+) {
+  return `${baseUrl.replace(/\/+$/, '')}/${path.replace(
+    /^\/+/,
+    '',
+  )}`;
+}
+
 export function getSettings(): AppSettings {
   try {
     const storedSettings =
       localStorage.getItem(SETTINGS_KEY);
 
+    const parsed =
+      JSON.parse(storedSettings || '{}');
+
     return {
       ...defaults,
-      ...JSON.parse(storedSettings || '{}'),
+      ...parsed,
+      backendUrl:
+        parsed.backendUrl?.trim() ||
+        defaults.backendUrl,
+      apiKey:
+        parsed.apiKey?.trim() ||
+        defaults.apiKey,
     };
   } catch {
     return defaults;
@@ -27,18 +47,32 @@ export function saveSettings(
 ) {
   localStorage.setItem(
     SETTINGS_KEY,
-    JSON.stringify(settings),
+    JSON.stringify({
+      ...settings,
+      backendUrl:
+        settings.backendUrl.trim(),
+      apiKey: settings.apiKey.trim(),
+    }),
   );
 }
 
+export function resetSettings() {
+  localStorage.removeItem(SETTINGS_KEY);
+}
+
 export async function apiRequest<T>(
   path: string,
   init: RequestInit = {},
 ): Promise<T> {
   const settings = getSettings();
 
+  console.log(
+    '[API]',
+    joinUrl(settings.backendUrl, path),
+  );
+
   const response = await fetch(
-    `${settings.backendUrl}${path}`,
+    joinUrl(settings.backendUrl, path),
     {
       ...init,
       headers: {