diff --git a/Project/applications/smartcities/json.c b/Project/applications/smartcities/json.c
index 6c8214e..ab381fe 100644
--- a/Project/applications/smartcities/json.c
+++ b/Project/applications/smartcities/json.c
@@ -42,8 +42,12 @@ char* prepare_observation(char* observation, uint32_t length)
 
 uint8_t send_json(char* statement, uint32_t length)
 {
-	//CHECK CONNECTIVITY
-		//RETURN JSON_COMM_ERROR
+	int connectivity;
+	connectivity = libwismart_IsConnected();
+	if(connectivity != WISMART_CONNECT)
+	{
+		return JSON_COMM_ERROR;
+	}
 	//PREPARE HTTP POST
 	//SEND POST
 		//RETURN JSON_OTHER_ERROR