diff --git a/classes/lab/ActividadAdmin.php b/classes/lab/ActividadAdmin.php
index 4b51032..7d4e41b 100644
--- a/classes/lab/ActividadAdmin.php
+++ b/classes/lab/ActividadAdmin.php
@@ -48,6 +48,15 @@ class ActividadAdmin {
             ? json_encode($detalle, JSON_UNESCAPED_UNICODE)
             : (string)($detalle ?? '');
 
+        // Resolver IP real del cliente (detrás de proxy/Coolify/Nginx)
+        $ip = null;
+        foreach (['HTTP_X_FORWARDED_FOR','HTTP_X_REAL_IP','HTTP_CF_CONNECTING_IP','REMOTE_ADDR'] as $h) {
+            if (!empty($_SERVER[$h])) {
+                $ip = trim(explode(',', $_SERVER[$h])[0]);
+                break;
+            }
+        }
+
         return $this->db->insert('lab_actividad_admin', [
             'admin_id'    => $adminId,
             'admin_nombre'=> $adminNombre,
@@ -55,7 +64,7 @@ class ActividadAdmin {
             'accion'      => $accion,
             'entidad_id'  => $entidadId,
             'detalle'     => $detalleStr,
-            'ip_address'  => $_SERVER['REMOTE_ADDR'] ?? null,
+            'ip_address'  => $ip,
             'user_agent'  => $_SERVER['HTTP_USER_AGENT'] ?? null,
         ]);
     }