diff --git a/app/Http/Controllers/AuthController.php b/app/Http/Controllers/AuthController.php
index 82ee9e0..f9a7ab6 100644
--- a/app/Http/Controllers/AuthController.php
+++ b/app/Http/Controllers/AuthController.php
@@ -4,12 +4,9 @@ namespace App\Http\Controllers;
 
 use App\Http\Requests\Auth\LoginRequest;
 use App\Http\Traits\ApiResponse;
-use App\Models\User;
 use Illuminate\Http\JsonResponse;
 use Illuminate\Http\Request;
 use Illuminate\Support\Facades\Auth;
-use Illuminate\Support\Facades\DB;
-use Illuminate\Support\Facades\Session;
 
 class AuthController extends Controller
 {
@@ -17,27 +14,6 @@ class AuthController extends Controller
 
     public function login(LoginRequest $request): JsonResponse
     {
-        $user = User::where('username', $request->username)->first();
-        $telephoneId = $user->telephone_id;
-
-        if ($user->is_online) {
-            return $this->errorResponse(__('messages.user_already_online'), 409);
-
-        }
-
-        if ($telephoneId) {
-            $previousOfflineUser = User::where('telephone_id', $telephoneId)
-                ->where('id', '!=', $user->id)
-                ->where('is_online', false)
-                ->first();
-
-            if ($previousOfflineUser) {
-                DB::table('sessions')
-                    ->where('user_id', $previousOfflineUser->id)
-                    ->delete();
-            }
-        }
-
         if ($this->attemptLogin($request))
         {
             $request->session()->regenerate();
@@ -58,13 +34,9 @@ class AuthController extends Controller
         Auth::user()->update([
             'last_login' => now(),
             'telephone_id' => $request->telephone_id,
-            'is_online' => true
         ]);
-        DB::table('sessions')
-            ->where('user_id', Auth::id())
-            ->where('id', '!=', Session::getId())
-            ->delete();
     }
+
     public function logout(Request $request): JsonResponse
     {
         Auth::user()->update([
diff --git a/app/Http/Requests/Auth/LoginRequest.php b/app/Http/Requests/Auth/LoginRequest.php
index a2cd90f..b1de752 100644
--- a/app/Http/Requests/Auth/LoginRequest.php
+++ b/app/Http/Requests/Auth/LoginRequest.php
@@ -14,7 +14,7 @@ class LoginRequest extends FormRequest
      */
     public function authorize(): bool
     {
-        return true;
+        return !User::query()->where('username', '=', $this->username)->value('is_online');
     }
 
     /**