diff --git a/src/main/java/info/istlab/IoTP/SerialWindow.java b/src/main/java/info/istlab/IoTP/SerialWindow.java
index bc6bee3..f6af559 100644
--- a/src/main/java/info/istlab/IoTP/SerialWindow.java
+++ b/src/main/java/info/istlab/IoTP/SerialWindow.java
@@ -89,6 +89,7 @@
             swin = new SerialWindow(sp);
         } else {
             swin.setVisible(true);
+            swin.reconnect();
         }
         // SerialPort[] ports = SerialPort.getCommPorts();
         // ArrayList<SerialPort> splist_valid = new ArrayList<SerialPort>();