diff --git a/CampusAppWP8/CampusAppWP8/Feed/Link/CommonLinkFeed.cs b/CampusAppWP8/CampusAppWP8/Feed/Link/CommonLinkFeed.cs
index a51a3a20..721c5fc3 100644
--- a/CampusAppWP8/CampusAppWP8/Feed/Link/CommonLinkFeed.cs
+++ b/CampusAppWP8/CampusAppWP8/Feed/Link/CommonLinkFeed.cs
@@ -28,6 +28,7 @@ namespace CampusAppWP8.Feed.Link
             : base(ModelType.FileAndFeed, Constants.FileLink_CommonLinks, Constants.UrlLink_CommonLinks)
         {
             this.isFileUpToDateOnLoad += new IsFileUpToDate(this.CheckIsFileUpToDateOnLoad);
+            this.isFileUpToDateOnSave += new IsFileUpToDate(this.CheckIsFileUpToDateOnLoad);
             this.isModelUpToDateOnLoad += new IsModelUpToDate(this.CheckIsModelUpToDate);
         }
 
diff --git a/CampusAppWP8/CampusAppWP8/Pages/Departments/DepartmentIndexPage.xaml b/CampusAppWP8/CampusAppWP8/Pages/Departments/DepartmentIndexPage.xaml
index 7cf96e78..8c1c6225 100644
--- a/CampusAppWP8/CampusAppWP8/Pages/Departments/DepartmentIndexPage.xaml
+++ b/CampusAppWP8/CampusAppWP8/Pages/Departments/DepartmentIndexPage.xaml
@@ -6,6 +6,7 @@
     xmlns:shell="clr-namespace:Microsoft.Phone.Shell;assembly=Microsoft.Phone"
     xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
     xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+    xmlns:lui="clr-namespace:CampusAppWP8.Utility.Lui.Button"
     FontFamily="{StaticResource PhoneFontFamilyNormal}"
     FontSize="{StaticResource PhoneFontSizeNormal}"
     Foreground="{StaticResource PhoneForegroundBrush}"
@@ -74,4 +75,9 @@
             </ListBox.ItemTemplate>
         </ListBox>
     </Grid>
+    <phone:PhoneApplicationPage.ApplicationBar>
+        <shell:ApplicationBar IsVisible="True" IsMenuEnabled="False" Mode="Minimized"  Opacity="1.0" >
+            <lui:UpdateButtonAppBar Click="DeptForceUpdate_Click"/>
+        </shell:ApplicationBar>
+    </phone:PhoneApplicationPage.ApplicationBar>
 </phone:PhoneApplicationPage>
\ No newline at end of file
diff --git a/CampusAppWP8/CampusAppWP8/Pages/Departments/DepartmentIndexPage.xaml.cs b/CampusAppWP8/CampusAppWP8/Pages/Departments/DepartmentIndexPage.xaml.cs
index 9c048b81..eab525bb 100644
--- a/CampusAppWP8/CampusAppWP8/Pages/Departments/DepartmentIndexPage.xaml.cs
+++ b/CampusAppWP8/CampusAppWP8/Pages/Departments/DepartmentIndexPage.xaml.cs
@@ -156,5 +156,16 @@ namespace CampusAppWP8.Pages.Departments
 
             NavigationService.Navigate(new Uri(Constants.PathDepartment_DepartmentPage + "?pivotindex=" + tempElem.Tag, UriKind.Relative));
         }
+
+        /// <summary>
+        /// On clicking the update button in the ApplicationBar.
+        /// Force a data update from the web.
+        /// </summary>
+        /// <param name="sender">button object</param>
+        /// <param name="e">event args</param>
+        private void DeptForceUpdate_Click(object sender, EventArgs e)
+        {
+            DepartmentIndexPage.feed.ForceWebUpdate();
+        }
     }
 }
\ No newline at end of file
diff --git a/CampusAppWP8/CampusAppWP8/Pages/Links/LinkPage.xaml b/CampusAppWP8/CampusAppWP8/Pages/Links/LinkPage.xaml
index f0378ecc..0057ec4c 100644
--- a/CampusAppWP8/CampusAppWP8/Pages/Links/LinkPage.xaml
+++ b/CampusAppWP8/CampusAppWP8/Pages/Links/LinkPage.xaml
@@ -58,5 +58,9 @@
             </phone:PivotItem>
         </phone:Pivot>
     </Grid>
-
+    <phone:PhoneApplicationPage.ApplicationBar>
+        <shell:ApplicationBar IsVisible="True" IsMenuEnabled="False" Mode="Minimized"  Opacity="1.0" >
+            <lui:UpdateButtonAppBar Click="LinkForceUpdate_Click"/>
+        </shell:ApplicationBar>
+    </phone:PhoneApplicationPage.ApplicationBar>
 </phone:PhoneApplicationPage>
\ No newline at end of file
diff --git a/CampusAppWP8/CampusAppWP8/Pages/Links/LinkPage.xaml.cs b/CampusAppWP8/CampusAppWP8/Pages/Links/LinkPage.xaml.cs
index e12e313b..8800886d 100644
--- a/CampusAppWP8/CampusAppWP8/Pages/Links/LinkPage.xaml.cs
+++ b/CampusAppWP8/CampusAppWP8/Pages/Links/LinkPage.xaml.cs
@@ -10,6 +10,7 @@ namespace CampusAppWP8.Pages.Links
     using System.Windows.Navigation;
     using CampusAppWP8.Feed.Link;
     using Microsoft.Phone.Controls;
+    using System;
 
     /// <summary>
     /// Class for the LinkPage
@@ -148,6 +149,19 @@ namespace CampusAppWP8.Pages.Links
             this.ClubLinkPanel.ItemsSource = this.clubLinkFeed.Model.Links;
         }
 
+        /// <summary>
+        /// On clicking the update button in the ApplicationBar.
+        /// Force a data update from the web.
+        /// </summary>
+        /// <param name="sender">button object</param>
+        /// <param name="e">event args</param>
+        private void LinkForceUpdate_Click(object sender, EventArgs e)
+        {
+            this.loadingFeeds = 2;
+            this.ProgressBar.Visibility = System.Windows.Visibility.Visible;
+            this.commonLinkFeed.ForceWebUpdate();
+            this.clubLinkFeed.ForceWebUpdate();
+        }
         #endregion
 
         #endregion
diff --git a/CampusAppWP8/CampusAppWP8/Pages/Openinghours/OpeninghoursPage.xaml b/CampusAppWP8/CampusAppWP8/Pages/Openinghours/OpeninghoursPage.xaml
index 40dce836..32570e7c 100644
--- a/CampusAppWP8/CampusAppWP8/Pages/Openinghours/OpeninghoursPage.xaml
+++ b/CampusAppWP8/CampusAppWP8/Pages/Openinghours/OpeninghoursPage.xaml
@@ -126,5 +126,9 @@
             </ListBox.ItemTemplate>
         </ListBox>
     </Grid>
-
+    <phone:PhoneApplicationPage.ApplicationBar>
+        <shell:ApplicationBar IsVisible="True" IsMenuEnabled="False" Mode="Minimized"  Opacity="1.0" >
+            <lui:UpdateButtonAppBar Click="OpenHoursForceUpdate_Click"/>
+        </shell:ApplicationBar>
+    </phone:PhoneApplicationPage.ApplicationBar>
 </phone:PhoneApplicationPage>
\ No newline at end of file
diff --git a/CampusAppWP8/CampusAppWP8/Pages/Openinghours/OpeninghoursPage.xaml.cs b/CampusAppWP8/CampusAppWP8/Pages/Openinghours/OpeninghoursPage.xaml.cs
index 1be5c5b5..b8c56c47 100644
--- a/CampusAppWP8/CampusAppWP8/Pages/Openinghours/OpeninghoursPage.xaml.cs
+++ b/CampusAppWP8/CampusAppWP8/Pages/Openinghours/OpeninghoursPage.xaml.cs
@@ -10,6 +10,7 @@ namespace CampusAppWP8.Pages.Openinghours
     using System.Windows.Navigation;
     using CampusAppWP8.Feed.Openinghours;
     using Microsoft.Phone.Controls;
+    using System;
 
     /// <summary>
     /// Opening hours page.
@@ -94,6 +95,17 @@ namespace CampusAppWP8.Pages.Openinghours
             this.InstitutionPanel.ItemsSource = this.feed.Model.Institutions;
         }
 
+        /// <summary>
+        /// On clicking the update button in the ApplicationBar.
+        /// Force a data update from the web.
+        /// </summary>
+        /// <param name="sender">button object</param>
+        /// <param name="e">event args</param>
+        private void OpenHoursForceUpdate_Click(object sender, EventArgs e)
+        {
+            this.ProgressBar.Visibility = System.Windows.Visibility.Visible;
+            this.feed.ForceWebUpdate();
+        }
         // private
         #endregion
         // Method
diff --git a/CampusAppWP8/CampusAppWP8/Pages/StudentCouncil/StudentCouncilPage.xaml b/CampusAppWP8/CampusAppWP8/Pages/StudentCouncil/StudentCouncilPage.xaml
index 6be59cd1..f4f7b52c 100644
--- a/CampusAppWP8/CampusAppWP8/Pages/StudentCouncil/StudentCouncilPage.xaml
+++ b/CampusAppWP8/CampusAppWP8/Pages/StudentCouncil/StudentCouncilPage.xaml
@@ -52,5 +52,9 @@
             </phone:Pivot.ItemTemplate>
         </phone:Pivot>
     </Grid>
-
+    <phone:PhoneApplicationPage.ApplicationBar>
+        <shell:ApplicationBar IsVisible="True" IsMenuEnabled="False" Mode="Minimized"  Opacity="1.0" >
+            <lui:UpdateButtonAppBar Click="StudentForceUpdate_Click"/>
+        </shell:ApplicationBar>
+    </phone:PhoneApplicationPage.ApplicationBar>
 </phone:PhoneApplicationPage>
\ No newline at end of file
diff --git a/CampusAppWP8/CampusAppWP8/Pages/StudentCouncil/StudentCouncilPage.xaml.cs b/CampusAppWP8/CampusAppWP8/Pages/StudentCouncil/StudentCouncilPage.xaml.cs
index 9b427ae6..486d4611 100644
--- a/CampusAppWP8/CampusAppWP8/Pages/StudentCouncil/StudentCouncilPage.xaml.cs
+++ b/CampusAppWP8/CampusAppWP8/Pages/StudentCouncil/StudentCouncilPage.xaml.cs
@@ -10,6 +10,7 @@ namespace CampusAppWP8.Pages.StudentCouncil
     using System.Windows.Navigation;
     using Microsoft.Phone.Controls;
     using CampusAppWP8.Feed.StudentCouncil;
+    using System;
 
     /// <summary>
     /// Class for the  StudentCouncilPage
@@ -88,6 +89,18 @@ namespace CampusAppWP8.Pages.StudentCouncil
             this.StudentCouncilPivot.ItemsSource = this.feed.Model.GetStudentCouncilsGroupByFaculty();
         }
 
+        /// <summary>
+        /// On clicking the update button in the ApplicationBar.
+        /// Force a data update from the web.
+        /// </summary>
+        /// <param name="sender">button object</param>
+        /// <param name="e">event args</param>
+        private void StudentForceUpdate_Click(object sender, EventArgs e)
+        {
+            this.ProgressBar.Visibility = System.Windows.Visibility.Visible;
+            this.feed.ForceWebUpdate();
+        }
+
         #endregion
 
         #endregion
diff --git a/CampusAppWP8/CampusAppWP8/Utility/File.cs b/CampusAppWP8/CampusAppWP8/Utility/File.cs
index 8e6fcae3..b3e51dc0 100644
--- a/CampusAppWP8/CampusAppWP8/Utility/File.cs
+++ b/CampusAppWP8/CampusAppWP8/Utility/File.cs
@@ -220,11 +220,19 @@ namespace CampusAppWP8.Utility
         /// <param name="data">data array</param>
         private async void WriteAsync(byte[] data)
         {
-            var file = await File.LocalFolder.CreateFileAsync(this.filename, CreationCollisionOption.ReplaceExisting);
-
-            using (var s = await file.OpenStreamForWriteAsync())
+            try
             {
-                await s.WriteAsync(data, 0, data.Length);
+                var file = await File.LocalFolder.CreateFileAsync(this.filename, CreationCollisionOption.ReplaceExisting);
+
+                using (var s = await file.OpenStreamForWriteAsync())
+                {
+                    await s.WriteAsync(data, 0, data.Length);
+                }
+            }
+            catch (Exception e)
+            {
+                // log write Error
+                Logger.LogException(e);
             }
         }
     }