diff --git a/mobile/com.sap.sailing.android.shared/res/values/strings.xml b/mobile/com.sap.sailing.android.shared/res/values/strings.xml
index 36f425926e8..31727b149bd 100644
--- a/mobile/com.sap.sailing.android.shared/res/values/strings.xml
+++ b/mobile/com.sap.sailing.android.shared/res/values/strings.xml
@@ -59,4 +59,10 @@
     <string name="eula">EULA</string>
     <string name="licence_information">Licence Information</string>
 
+    <!-- HTTP Requests -->
+    <string name="http_request_exception" translatable="false">(Request %1$d) %2$s\nHTTP response code: %3$d.\nHTTP response body: %4$s.</string>
+    <string name="http_request_executed" translatable="false">(Request %d) HTTP request executed.</string>
+    <string name="http_request_aborted" translatable="false">(Request %d) HTTP request aborted.</string>
+    <string name="http_request_failed" translatable="false">(Request %d) HTTP request failed.</string>
+
 </resources>
\ No newline at end of file
diff --git a/mobile/com.sap.sailing.android.shared/src/com/sap/sailing/android/shared/data/http/HttpRequest.java b/mobile/com.sap.sailing.android.shared/src/com/sap/sailing/android/shared/data/http/HttpRequest.java
index 22d8255aa03..9829cce07e1 100644
--- a/mobile/com.sap.sailing.android.shared/src/com/sap/sailing/android/shared/data/http/HttpRequest.java
+++ b/mobile/com.sap.sailing.android.shared/src/com/sap/sailing/android/shared/data/http/HttpRequest.java
@@ -94,26 +94,27 @@ public abstract class HttpRequest {
             try {
                 responseInputStream = doRequest(connection);
             } catch (FileNotFoundException fnfe) {
+                if (HttpURLConnection.HTTP_UNAUTHORIZED == connection.getResponseCode()) {
+                    throw new UnauthorizedException();
+                }
                 // 404 errors...
-                throw new FileNotFoundException(String.format(
-                        "(Request %d) %s\nHTTP response code: %d.\nHTTP response body: %s.", this.hashCode(),
-                        fnfe.getMessage(), connection.getResponseCode(), connection.getResponseMessage()));
+                throw new FileNotFoundException(context.getString(R.string.http_request_exception, this.hashCode(), fnfe.getMessage(), connection.getResponseCode(), connection.getResponseMessage()));
             }
 
             validateHttpResponseCode(connection);
 
             InputStream copiedResponseInputStream = readAndCopyResponse(connection, responseInputStream);
-            
+
             if (copiedResponseInputStream != null) {
-                ExLog.i(context, TAG, String.format("(Request %d) HTTP request executed.", this.hashCode()));
+                ExLog.i(context, TAG, context.getString(R.string.http_request_executed, this.hashCode()));
             } else {
-                ExLog.i(context, TAG, String.format("(Request %d) HTTP request aborted.", this.hashCode()));
+                ExLog.i(context, TAG, context.getString(R.string.http_request_aborted, this.hashCode()));
             }
-            
+
             connection.disconnect();
             return copiedResponseInputStream;
         } catch (IOException e) {
-            ExLog.i(context, TAG, String.format("(Request %d) HTTP request failed.", this.hashCode()));
+            ExLog.i(context, TAG, context.getString(R.string.http_request_failed, this.hashCode()));
             throw e;
         } finally {
             safeClose(responseInputStream);
diff --git a/mobile/com.sap.sailing.android.shared/src/com/sap/sailing/android/shared/data/http/UnauthorizedException.java b/mobile/com.sap.sailing.android.shared/src/com/sap/sailing/android/shared/data/http/UnauthorizedException.java
new file mode 100644
index 00000000000..aa44e7dc729
--- /dev/null
+++ b/mobile/com.sap.sailing.android.shared/src/com/sap/sailing/android/shared/data/http/UnauthorizedException.java
@@ -0,0 +1,10 @@
+package com.sap.sailing.android.shared.data.http;
+
+import java.io.IOException;
+
+/**
+ * Used for HTTP-Request ResponseCode 401
+ */
+public class UnauthorizedException extends IOException {
+
+}
diff --git a/mobile/com.sap.sailing.racecommittee.app/res/values-de/strings.xml b/mobile/com.sap.sailing.racecommittee.app/res/values-de/strings.xml
index a5052b5b831..8506c5ad3be 100644
--- a/mobile/com.sap.sailing.racecommittee.app/res/values-de/strings.xml
+++ b/mobile/com.sap.sailing.racecommittee.app/res/values-de/strings.xml
@@ -465,5 +465,6 @@
     <string name="wind_select_race">Select Race</string>
     <string name="get_started">Getting Started</string>
     <string name="get_started_url">http://www.sapsailing.com/gwt/Home.html?locale=de#SolutionsPlace:navigationTab=RaceCommitteeApp</string>
+    <string name="user_unauthorized">Request fehlgeschlagen. User ist nicht autorisiert.</string>
 
 </resources>
\ No newline at end of file
diff --git a/mobile/com.sap.sailing.racecommittee.app/res/values/strings.xml b/mobile/com.sap.sailing.racecommittee.app/res/values/strings.xml
index f17e4036d2f..6c2e499a2a0 100644
--- a/mobile/com.sap.sailing.racecommittee.app/res/values/strings.xml
+++ b/mobile/com.sap.sailing.racecommittee.app/res/values/strings.xml
@@ -492,5 +492,6 @@
     <string name="wind_select_race">Select Race</string>
     <string name="get_started">Getting Started</string>
     <string name="get_started_url">http://www.sapsailing.com/gwt/Home.html?locale=en#SolutionsPlace:navigationTab=RaceCommitteeApp</string>
+    <string name="user_unauthorized">Request failed. User is unauthorized.</string>
 
 </resources>
\ No newline at end of file
diff --git a/mobile/com.sap.sailing.racecommittee.app/src/com/sap/sailing/racecommittee/app/ui/fragments/dialogs/LoadFailedDialog.java b/mobile/com.sap.sailing.racecommittee.app/src/com/sap/sailing/racecommittee/app/ui/fragments/dialogs/LoadFailedDialog.java
index 38f069c20ac..790af887571 100644
--- a/mobile/com.sap.sailing.racecommittee.app/src/com/sap/sailing/racecommittee/app/ui/fragments/dialogs/LoadFailedDialog.java
+++ b/mobile/com.sap.sailing.racecommittee.app/src/com/sap/sailing/racecommittee/app/ui/fragments/dialogs/LoadFailedDialog.java
@@ -31,10 +31,7 @@ public class LoadFailedDialog extends FragmentAttachedDialogFragment {
     @Override
     protected AlertDialog.Builder createDialog(AlertDialog.Builder builder) {
         return builder
-                .setMessage(String.format(
-                        getString(R.string.generic_load_failure), 
-                        getArguments().getString(ARGS_ERROR_MSG)))
-                        .setTitle(getString(R.string.loading_failure))
-                        .setIcon(R.drawable.ic_warning_grey_600_36dp);
+            .setMessage(getString(R.string.generic_load_failure, getArguments().getString(ARGS_ERROR_MSG)))
+            .setTitle(getString(R.string.loading_failure));
     }
 }
diff --git a/mobile/com.sap.sailing.racecommittee.app/src/com/sap/sailing/racecommittee/app/ui/fragments/lists/NamedListFragment.java b/mobile/com.sap.sailing.racecommittee.app/src/com/sap/sailing/racecommittee/app/ui/fragments/lists/NamedListFragment.java
index a78cceb444a..084012b9d55 100644
--- a/mobile/com.sap.sailing.racecommittee.app/src/com/sap/sailing/racecommittee/app/ui/fragments/lists/NamedListFragment.java
+++ b/mobile/com.sap.sailing.racecommittee.app/src/com/sap/sailing/racecommittee/app/ui/fragments/lists/NamedListFragment.java
@@ -11,12 +11,14 @@ import android.app.Activity;
 import android.app.FragmentManager;
 import android.app.LoaderManager.LoaderCallbacks;
 import android.os.Bundle;
+import android.support.v7.app.AlertDialog;
 import android.text.TextUtils;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
 import android.widget.ListView;
 
+import com.sap.sailing.android.shared.data.http.UnauthorizedException;
 import com.sap.sailing.domain.base.EventBase;
 import com.sap.sailing.racecommittee.app.R;
 import com.sap.sailing.racecommittee.app.data.OnlineDataManager;
@@ -101,11 +103,19 @@ public abstract class NamedListFragment<T extends Named> extends LoggableListFra
 
         showProgressBar(false);
 
-        String message = reason.getMessage();
-        if (message == null) {
-            message = reason.toString();
+        if (reason instanceof UnauthorizedException) {
+            AlertDialog.Builder builder = new AlertDialog.Builder(getActivity(), R.style.AppTheme_AlertDialog);
+            builder.setTitle(R.string.loading_failure);
+            builder.setPositiveButton(android.R.string.ok, null);
+            builder.setMessage(getActivity().getString(R.string.user_unauthorized));
+            builder.show();
+        } else {
+            String message = reason.getMessage();
+            if (message == null) {
+                message = reason.toString();
+            }
+            showLoadFailedDialog(message);
         }
-        showLoadFailedDialog(message);
     }
 
     @Override