diff --git a/src/PolyTrader.App.Avalonia/Views/SettingsWindow.axaml b/src/PolyTrader.App.Avalonia/Views/SettingsWindow.axaml
index 3b7f74b..252e5f0 100644
--- a/src/PolyTrader.App.Avalonia/Views/SettingsWindow.axaml
+++ b/src/PolyTrader.App.Avalonia/Views/SettingsWindow.axaml
@@ -81,7 +81,7 @@
                             <StackPanel Spacing="12">
                                 <TextBlock Text="Server-Status" FontWeight="SemiBold" FontSize="14" />
                                 <TextBlock Name="lblWebUiStatus" Text="Status wird ermittelt …" Foreground="{DynamicResource AppAccentBrush}" />
-                                <TextBlock Name="lblWebUiUrl" Text="http://127.0.0.1:5001" Foreground="{DynamicResource AppMutedTextBrush}" FontSize="12" />
+                                <TextBlock Name="lblWebUiUrl" Text="http://127.0.0.1:6001" Foreground="{DynamicResource AppMutedTextBrush}" FontSize="12" />
                             </StackPanel>
                         </Border>
 
@@ -93,7 +93,7 @@
                                 
                                 <Grid ColumnDefinitions="140,*" Margin="0,4">
                                     <TextBlock Grid.Column="0" Text="Port:" VerticalAlignment="Center" />
-                                    <NumericUpDown Name="numWebUiPort" Grid.Column="1" Minimum="1024" Maximum="65535" Value="5001" Width="150" HorizontalAlignment="Left" />
+                                    <NumericUpDown Name="numWebUiPort" Grid.Column="1" Minimum="1024" Maximum="65535" Value="6001" Width="150" HorizontalAlignment="Left" />
                                 </Grid>
 
                                 <CheckBox Name="chkWebUiLocalOnly" Content="Nur lokaler Zugriff (127.0.0.1)" />
diff --git a/src/PolyTrader.App.Avalonia/Views/SettingsWindow.axaml.cs b/src/PolyTrader.App.Avalonia/Views/SettingsWindow.axaml.cs
index 0184fcc..95b0ec4 100644
--- a/src/PolyTrader.App.Avalonia/Views/SettingsWindow.axaml.cs
+++ b/src/PolyTrader.App.Avalonia/Views/SettingsWindow.axaml.cs
@@ -510,7 +510,7 @@ namespace PolyTrader.App.Avalonia.Views
             var txtToken = this.FindControl<TextBox>("txtWebUiToken")!;
 
             _webOptions.Enabled = chkEnabled.IsChecked ?? true;
-            _webOptions.Port = (int)(numPort.Value ?? 5001);
+            _webOptions.Port = (int)(numPort.Value ?? 6001);
             _webOptions.LocalOnly = chkLocal.IsChecked ?? true;
             _webOptions.AuthToken = txtToken.Text?.Trim() ?? string.Empty;
 
diff --git a/src/PolyTrader.App.Avalonia/appsettings.json b/src/PolyTrader.App.Avalonia/appsettings.json
index 816b479..2dde4e3 100644
--- a/src/PolyTrader.App.Avalonia/appsettings.json
+++ b/src/PolyTrader.App.Avalonia/appsettings.json
@@ -25,9 +25,9 @@
     }
   },
   "WebUi": {
-    "_comment": "Port (Standard 5001), LocalOnly (Standard true = nur 127.0.0.1). AuthToken liegt in appsettings.Local.json.",
+    "_comment": "Port (Standard 6001), LocalOnly (Standard true = nur 127.0.0.1). AuthToken liegt in appsettings.Local.json.",
     "Enabled": true,
-    "Port": 5001,
+    "Port": 6001,
     "LocalOnly": true,
     "AuthToken": ""
   }
diff --git a/src/PolyTrader.Web/Configuration/WebUiOptions.cs b/src/PolyTrader.Web/Configuration/WebUiOptions.cs
index f9d3a5c..1e64121 100644
--- a/src/PolyTrader.Web/Configuration/WebUiOptions.cs
+++ b/src/PolyTrader.Web/Configuration/WebUiOptions.cs
@@ -15,9 +15,9 @@ namespace PolyTrader.Web.Configuration
         public bool Enabled { get; set; } = true;
 
         /// <summary>
-        /// Port, auf dem Kestrel lauscht (Standard: 5001).
+        /// Port, auf dem Kestrel lauscht (Standard: 6001).
         /// </summary>
-        public int Port { get; set; } = 5001;
+        public int Port { get; set; } = 6001;
 
         /// <summary>
         /// Wenn true, bindet Kestrel nur an Loopback (127.0.0.1 / localhost).
diff --git a/src/PolyTrader.Web/Endpoints/SettingsEndpoints.cs b/src/PolyTrader.Web/Endpoints/SettingsEndpoints.cs
index 291ac35..695dccc 100644
--- a/src/PolyTrader.Web/Endpoints/SettingsEndpoints.cs
+++ b/src/PolyTrader.Web/Endpoints/SettingsEndpoints.cs
@@ -32,7 +32,7 @@ namespace PolyTrader.Web.Endpoints
             {
                 var opt = optionsProvider.Value;
                 opt.Enabled = req.Enabled;
-                opt.Port = req.Port > 0 && req.Port <= 65535 ? req.Port : 5001;
+                opt.Port = req.Port > 0 && req.Port <= 65535 ? req.Port : 6001;
                 opt.LocalOnly = req.LocalOnly;
                 if (req.AuthToken != null)
                 {
diff --git a/src/PolyTrader.Web/wwwroot/index.html b/src/PolyTrader.Web/wwwroot/index.html
index ae7de1f..ff012ad 100644
--- a/src/PolyTrader.Web/wwwroot/index.html
+++ b/src/PolyTrader.Web/wwwroot/index.html
@@ -190,7 +190,7 @@
                     <div class="form-row">
                         <label for="cfgPort">Server-Port</label>
                         <input type="number" id="cfgPort" class="form-input" min="1024" max="65535" required>
-                        <div class="form-desc">Standard ist 5001. Änderung wird nach dem nächsten Neustart aktiv.</div>
+                        <div class="form-desc">Standard ist 6001. Änderung wird nach dem nächsten Neustart aktiv.</div>
                     </div>
 
                     <div class="form-row">
diff --git a/tests/PolyTrader.Tests/WebUi/WebUiConfigManagerTests.cs b/tests/PolyTrader.Tests/WebUi/WebUiConfigManagerTests.cs
index f5f252c..c600cf8 100644
--- a/tests/PolyTrader.Tests/WebUi/WebUiConfigManagerTests.cs
+++ b/tests/PolyTrader.Tests/WebUi/WebUiConfigManagerTests.cs
@@ -42,7 +42,7 @@ namespace PolyTrader.Tests.WebUi
             var options = new WebUiOptions
             {
                 Enabled = true,
-                Port = 5001,
+                Port = 6001,
                 LocalOnly = false,
                 AuthToken = "test-token-xyz"
             };
@@ -58,7 +58,7 @@ namespace PolyTrader.Tests.WebUi
             var webNode = node["WebUi"]?.AsObject();
             Assert.NotNull(webNode);
             Assert.True(webNode["Enabled"]?.GetValue<bool>());
-            Assert.Equal(5001, webNode["Port"]?.GetValue<int>());
+            Assert.Equal(6001, webNode["Port"]?.GetValue<int>());
             Assert.False(webNode["LocalOnly"]?.GetValue<bool>());
             Assert.Equal("test-token-xyz", webNode["AuthToken"]?.GetValue<string>());
         }