diff --git a/gestion/gen_confs/wifi_ng.py b/gestion/gen_confs/wifi_ng.py
index 7ab08c06..1c1d962f 100755
--- a/gestion/gen_confs/wifi_ng.py
+++ b/gestion/gen_confs/wifi_ng.py
@@ -149,6 +149,7 @@ Exchange-max-time=      40
 Logverbose=             1
 Loglevel=               A=90
 Check-interval=         60
+DPD-Check-interval=     120
 Default-phase-1-lifetime=       1200,90:86400
 Default-phase-2-lifetime=       1800,120:86400