diff --git a/simulator.py b/simulator.py
index c2ed3773..a1658769 100644
--- a/simulator.py
+++ b/simulator.py
@@ -443,19 +443,14 @@ class MultiMQTT:
 # =============================================================================
 # URLs de base (résolues au démarrage)
 # =============================================================================
-ORION_HOST = "fiware-gis-quickstart-orion-1"
-ORION_IP   = ""
-try:
-    import socket
-    ORION_IP = socket.gethostbyname(ORION_HOST)
-except:
-    pass
-ORION_URL = f"http://{ORION_IP or ORION_HOST}:1026" if ORION_IP else "http://fiware-gis-quickstart-orion-1:1026"
-STELLIO_URL = os.environ.get("STELLIO_URL", "http://stellio-api-gateway:8080")
+ORION_HOST = "localhost"
+ORION_PORT = "2026"
+ORION_URL = f"http://{ORION_HOST}:{ORION_PORT}"
+STELLIO_URL = os.environ.get("STELLIO_URL", "http://localhost:8080")  # Stellio API Gateway (à exposer)
 # Configuration OpenRemote (URLs dynamiques)
-OR_URL      = os.environ.get("OR_URL", "http://openremote-manager-1:8080")  # Hostname Docker interne
+OR_URL      = os.environ.get("OR_URL", "http://localhost:8080")  # OpenRemote Manager (Traefik)
 OR_REALM    = os.environ.get("OR_REALM", "smartcity")  # Default: smartcity
-OR_TOKEN_URL = os.environ.get("OR_TOKEN_URL", f"http://openremote-keycloak-1:8080/auth/realms/{OR_TOKEN_REALM}/protocol/openid-connect/token")
+OR_TOKEN_URL = os.environ.get("OR_TOKEN_URL", "http://localhost:8080/auth/realms/{OR_REALM}/protocol/openid-connect/token")
 OR_TOKEN_TTL = int(os.environ.get("OR_TOKEN_TTL", "3600"))  # Refresh token every hour
 STELLIO_TENANT = os.environ.get("STELLIO_TENANT", "urn:ngsi-ld:tenant:default")