diff --git a/QR-Code-Generator/QR4AudioGuide.cs b/QR-Code-Generator/QR4AudioGuide.cs
index 6f2dae4..3c5ac1f 100644
--- a/QR-Code-Generator/QR4AudioGuide.cs
+++ b/QR-Code-Generator/QR4AudioGuide.cs
@@ -32,14 +32,18 @@ namespace QR_Code_Generator
 
         private void bt_connect_Click(object sender, EventArgs e)
         {
+            bt_connect.Enabled = false;
+            Cursor.Current = Cursors.WaitCursor;
+            Application.DoEvents();
             list();
+           
         }
 
         private async void list()
         {
-            Cursor.Current = Cursors.WaitCursor;
-            Application.DoEvents();
             
+            Application.DoEvents();
+
             var dirs = await ListAllDirectoriesAsync("astronomiemuseum.de", "w01d9fc3", "7sFv4vQJEQ3RTm3a", "/audioguide.astromuseum.de");
 
             dataGridView1.Columns.Clear();
@@ -68,7 +72,7 @@ namespace QR_Code_Generator
 
             dataGridView1.AutoSizeColumnsMode = DataGridViewAutoSizeColumnsMode.AllCells;
             Cursor.Current = Cursors.Default;
-
+            bt_connect.Enabled = true;
         }