diff --git a/freeradius_utils/auth.py b/freeradius_utils/auth.py
index e53127fa..15a8d902 100644
--- a/freeradius_utils/auth.py
+++ b/freeradius_utils/auth.py
@@ -163,10 +163,22 @@ def post_auth(data):
     nas_instance = find_nas_from_request(nas)
     # All non proxified requests
     if not nas_instance:
+        user = data.get("User-Name", "")
+        user = user.split("@", 1)[0]
+        user = User.objects.filter(pseudo__iexact=username).first()
+        if not user or not user.has_access():
+            logger.info("Proxified request, user has no internet access: %s" % (username))
+            return radiusd.RLM_MODULE_REJECT
         logger.info("Proxified request, nas unknown")
         return radiusd.RLM_MODULE_OK
     nas_type = Nas.objects.filter(nas_type=nas_instance.machine_type).first()
     if not nas_type:
+        user = data.get("User-Name", "")
+        user = user.split("@", 1)[0]
+        user = User.objects.filter(pseudo__iexact=username).first()
+        if not user or not user.has_access():
+            logger.info("Proxified request, user has no internet access: %s" % (username))
+            return radiusd.RLM_MODULE_REJECT
         logger.info("This kind of nas is not registered in the database!")
         return radiusd.RLM_MODULE_OK