diff --git a/core/MySensorsCore.cpp b/core/MySensorsCore.cpp
index 6b92b99..eb1f1ab 100644
--- a/core/MySensorsCore.cpp
+++ b/core/MySensorsCore.cpp
@@ -177,7 +177,7 @@ void _begin(void)
 		setup();
 	}
 #if defined(MY_SENSOR_NETWORK)
-	CORE_DEBUG(PSTR("MCO:BGN:INIT OK,TSP=%" PRIu8 "\n"), isTransportReady());
+	CORE_DEBUG(PSTR("MCO:BGN:INIT OK,TSP=%" PRIu8 "\n"), isTransportReady() && transportSanityCheck());
 #else
 	// no sensor network defined, call presentation & registration
 	_callbackTransportReady();