diff --git a/src/BreCalClient/BreCalClient.csproj b/src/BreCalClient/BreCalClient.csproj
index 62704fd..b6f78d7 100644
--- a/src/BreCalClient/BreCalClient.csproj
+++ b/src/BreCalClient/BreCalClient.csproj
@@ -37,6 +37,7 @@
     <None Remove="Resources\lock.png" />
     <None Remove="Resources\lock_open.png" />
     <None Remove="Resources\logo_bremen_calling.png" />
+    <None Remove="Resources\nav_refresh_green.png" />
     <None Remove="Resources\ship2.png" />
     <None Remove="Resources\sign_warning.png" />
     <None Remove="Resources\trafficlight_green.png" />
@@ -92,6 +93,7 @@
     <Resource Include="Resources\lock.png" />
     <Resource Include="Resources\lock_open.png" />
     <Resource Include="Resources\logo_bremen_calling.png" />
+    <Resource Include="Resources\nav_refresh_green.png" />
     <Resource Include="Resources\ship2.png" />
     <Resource Include="Resources\sign_warning.png" />
     <Resource Include="Resources\StringResources.de.xaml">
diff --git a/src/BreCalClient/MainWindow.xaml b/src/BreCalClient/MainWindow.xaml
index aa5d84c..b05c5e8 100644
--- a/src/BreCalClient/MainWindow.xaml
+++ b/src/BreCalClient/MainWindow.xaml
@@ -116,6 +116,7 @@
                                 <ColumnDefinition Width="Auto" />
                                 <ColumnDefinition Width="*" />
                                 <ColumnDefinition Width="Auto" />
+                                <ColumnDefinition Width="26" />
                                 <ColumnDefinition Width="Auto" />
                                 <ColumnDefinition Width="Auto" />
                                 <ColumnDefinition Width="100" />
@@ -150,10 +151,15 @@
                 </StatusBarItem>
                 <Separator Grid.Column="11"/>
                 <StatusBarItem Grid.Column="12">
+                    <Button x:Name="buttonManualRefresh" Width="20" Click="buttonManualRefresh_Click" ToolTip="{x:Static p:Resources.textTriggerManualRefresh}">
+                        <Image Source="./Resources/nav_refresh_green.png"/>
+                    </Button>
+                </StatusBarItem>
+                <StatusBarItem Grid.Column="13">
                     <TextBlock x:Name="labelLatestUpdate" />
                 </StatusBarItem>
-                <Separator Grid.Column="13"/>
-                <StatusBarItem Grid.Column="14">
+                <Separator Grid.Column="14"/>
+                <StatusBarItem Grid.Column="15">
                     <ProgressBar Name="generalProgressStatus" Width="90" Height="16" Foreground="LightGray"/>
                 </StatusBarItem>
             </StatusBar>
diff --git a/src/BreCalClient/MainWindow.xaml.cs b/src/BreCalClient/MainWindow.xaml.cs
index 3b9c00b..505c582 100644
--- a/src/BreCalClient/MainWindow.xaml.cs
+++ b/src/BreCalClient/MainWindow.xaml.cs
@@ -370,6 +370,12 @@ namespace BreCalClient
             }
         }
 
+        private void buttonManualRefresh_Click(object sender, RoutedEventArgs e)
+        {
+            _refreshImmediately = true; // set flag to avoid timer loop termination
+            _tokenSource.Cancel(); // force timer loop end
+        }
+
         #endregion
 
         #region network operations
@@ -968,6 +974,6 @@ namespace BreCalClient
         }
 
         #endregion
-        
+       
     }
 }
diff --git a/src/BreCalClient/Resources/Resources.Designer.cs b/src/BreCalClient/Resources/Resources.Designer.cs
index 94ed88b..3e306de 100644
--- a/src/BreCalClient/Resources/Resources.Designer.cs
+++ b/src/BreCalClient/Resources/Resources.Designer.cs
@@ -240,6 +240,16 @@ namespace BreCalClient.Resources {
             }
         }
         
+        /// <summary>
+        ///   Looks up a localized resource of type System.Byte[].
+        /// </summary>
+        public static byte[] nav_refresh_green {
+            get {
+                object obj = ResourceManager.GetObject("nav_refresh_green", resourceCulture);
+                return ((byte[])(obj));
+            }
+        }
+        
         /// <summary>
         ///   Looks up a localized resource of type System.Byte[].
         /// </summary>
@@ -1079,6 +1089,15 @@ namespace BreCalClient.Resources {
             }
         }
         
+        /// <summary>
+        ///   Looks up a localized string similar to Trigger a manual refresh of all shipcalls.
+        /// </summary>
+        public static string textTriggerManualRefresh {
+            get {
+                return ResourceManager.GetString("textTriggerManualRefresh", resourceCulture);
+            }
+        }
+        
         /// <summary>
         ///   Looks up a localized string similar to Tug.
         /// </summary>
diff --git a/src/BreCalClient/Resources/Resources.de.resx b/src/BreCalClient/Resources/Resources.de.resx
index 7a2cbcf..6e43a15 100644
--- a/src/BreCalClient/Resources/Resources.de.resx
+++ b/src/BreCalClient/Resources/Resources.de.resx
@@ -478,4 +478,7 @@
   <data name="textTooltipUnSetFixedOrder" xml:space="preserve">
     <value>Feste Bestellung zurücknehmen</value>
   </data>
+  <data name="textTriggerManualRefresh" xml:space="preserve">
+    <value>Manuelle Aktualisierung der Anläufe auslösen</value>
+  </data>
 </root>
\ No newline at end of file
diff --git a/src/BreCalClient/Resources/Resources.resx b/src/BreCalClient/Resources/Resources.resx
index dba2966..4172e4d 100644
--- a/src/BreCalClient/Resources/Resources.resx
+++ b/src/BreCalClient/Resources/Resources.resx
@@ -169,6 +169,9 @@
   <data name="logo_bremen_calling" type="System.Resources.ResXFileRef, System.Windows.Forms">
     <value>logo_bremen_calling.png;System.Byte[], mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
   </data>
+  <data name="nav_refresh_green" type="System.Resources.ResXFileRef, System.Windows.Forms">
+    <value>nav_refresh_green.png;System.Byte[], mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </data>
   <data name="ship2" type="System.Resources.ResXFileRef, System.Windows.Forms">
     <value>ship2.png;System.Byte[], mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
   </data>
@@ -448,6 +451,9 @@
   <data name="textTooltipUnSetFixedOrder" xml:space="preserve">
     <value>Unset as a a fixed order</value>
   </data>
+  <data name="textTriggerManualRefresh" xml:space="preserve">
+    <value>Trigger a manual refresh of all shipcalls</value>
+  </data>
   <data name="textTug" xml:space="preserve">
     <value>Tug</value>
   </data>
diff --git a/src/BreCalClient/Resources/nav_refresh_green.png b/src/BreCalClient/Resources/nav_refresh_green.png
new file mode 100644
index 0000000..0495c55
Binary files /dev/null and b/src/BreCalClient/Resources/nav_refresh_green.png differ