diff --git a/app/src/main/java/de/tu_chemnitz/wlan/Helper.java b/app/src/main/java/de/tu_chemnitz/wlan/Helper.java
index 95019b84dbc43c9213c1404655cf7ecf9efc9b40..d4d754a41b84073daf8dd6e37cea07d8f7d461fa 100644
--- a/app/src/main/java/de/tu_chemnitz/wlan/Helper.java
+++ b/app/src/main/java/de/tu_chemnitz/wlan/Helper.java
@@ -448,6 +448,8 @@ class Helper {
                 }
             }
 
+            // Test network id, to check if WLAN is available(-1) or disabled(0)
+            // Network id indicates network config status
             if (id == -1 || id == 0) {
                 lastAddedWifi = wifiMan.addNetwork(lastWifi);
             } else {