diff --git a/src/Aspire.Dashboard/Components/Controls/ApplicationName.razor.cs b/src/Aspire.Dashboard/Components/Controls/ApplicationName.razor.cs
index f564e7fbb83..b66a4267065 100644
--- a/src/Aspire.Dashboard/Components/Controls/ApplicationName.razor.cs
+++ b/src/Aspire.Dashboard/Components/Controls/ApplicationName.razor.cs
@@ -31,11 +31,28 @@ protected override async Task OnInitializedAsync()
         if (DashboardClient.IsEnabled && !DashboardClient.WhenConnected.IsCompletedSuccessfully)
         {
             _disposalCts = new CancellationTokenSource();
-            await DashboardClient.WhenConnected.WaitAsync(_disposalCts.Token);
+            try
+            {
+                await DashboardClient.WhenConnected.WaitAsync(_disposalCts.Token);
+            }
+            catch
+            {
+                // Ignore exceptions that occur during connection. Other code handles this error.
+                _pageTitle = GetApplicationName();
+            }
         }
     }
 
     protected override void OnParametersSet()
+    {
+        var applicationName = GetApplicationName();
+
+        _pageTitle = string.IsNullOrEmpty(AdditionalText)
+            ? applicationName
+            : $"{applicationName} ({AdditionalText})";
+    }
+
+    private string GetApplicationName()
     {
         string applicationName;
 
@@ -48,9 +65,7 @@ protected override void OnParametersSet()
             applicationName = DashboardClient.ApplicationName;
         }
 
-        _pageTitle = string.IsNullOrEmpty(AdditionalText)
-            ? applicationName
-            : $"{applicationName} ({AdditionalText})";
+        return applicationName;
     }
 
     public void Dispose()
diff --git a/src/Aspire.Dashboard/Components/Layout/MainLayout.razor.cs b/src/Aspire.Dashboard/Components/Layout/MainLayout.razor.cs
index 4b18e713c67..51547e06d08 100644
--- a/src/Aspire.Dashboard/Components/Layout/MainLayout.razor.cs
+++ b/src/Aspire.Dashboard/Components/Layout/MainLayout.razor.cs
@@ -1,6 +1,7 @@
 // Licensed to the .NET Foundation under one or more agreements.
 // The .NET Foundation licenses this file to you under the MIT license.
 
+using System.Diagnostics;
 using Aspire.Dashboard.Components.Dialogs;
 using Aspire.Dashboard.Components.Pages;
 using Aspire.Dashboard.Configuration;
@@ -25,6 +26,7 @@ public partial class MainLayout : IGlobalKeydownListener, IAsyncDisposable
     private DotNetObjectReference<ShortcutManager>? _shortcutManagerReference;
     private DotNetObjectReference<MainLayout>? _layoutReference;
     private IDialogReference? _openPageDialog;
+    private CancellationTokenSource? _disposalCts;
 
     private const string SettingsDialogId = "SettingsDialog";
     private const string HelpDialogId = "HelpDialog";
@@ -68,6 +70,9 @@ public partial class MainLayout : IGlobalKeydownListener, IAsyncDisposable
     [Inject]
     public required ILocalStorage LocalStorage { get; init; }
 
+    [Inject]
+    public required ILogger<MainLayout> Logger { get; init; }
+
     [CascadingParameter]
     public required ViewportInformation ViewportInformation { get; set; }
 
@@ -100,6 +105,15 @@ protected override async Task OnInitializedAsync()
                 return ValueTask.CompletedTask;
             });
         }
+        else
+        {
+            if (!DashboardClient.WhenConnected.IsCompletedSuccessfully)
+            {
+                // Check if the dashboard client can connect.
+                // Run in a new task to not block other behavior if a connection error occurs and a dialog is shown.
+                _ = Task.Run(EnsureClientConnectionAsync);
+            }
+        }
 
         var result = await JS.InvokeAsync<BrowserInfo>("window.getBrowserInfo");
         TimeProvider.SetBrowserTimeZone(result.TimeZone);
@@ -136,6 +150,44 @@ await MessageService.ShowMessageBarAsync(options =>
         }
     }
 
+    private async Task EnsureClientConnectionAsync()
+    {
+        Debug.Assert(DashboardClient.IsEnabled, "Dashboard client must be enabled to ensure connection.");
+
+        _disposalCts = new CancellationTokenSource();
+        try
+        {
+            await DashboardClient.WhenConnected.WaitAsync(_disposalCts.Token);
+        }
+        catch (Exception ex)
+        {
+            Logger.LogError(ex, "Connection error.");
+
+            var dialogParameters = new DialogParameters<MessageBoxContent>
+            {
+                PrimaryAction = DialogsLoc[nameof(Resources.Dialogs.ConnectionErrorDialogRetryButton)],
+                SecondaryAction = DialogsLoc[nameof(Resources.Dialogs.ConnectionErrorDialogCancelButton)],
+                PreventDismissOnOverlayClick = true,
+                Content = new MessageBoxContent
+                {
+                    Title = DialogsLoc[nameof(Resources.Dialogs.ConnectionErrorDialogTitle)],
+                    MarkupMessage = new MarkupString(DialogsLoc[nameof(Resources.Dialogs.ConnectionErrorDialogMessage)]),
+                    Intent = MessageBoxIntent.Confirmation,
+                    IconColor = Color.Error,
+                    Icon = new Microsoft.FluentUI.AspNetCore.Components.Icons.Filled.Size24.DismissCircle()
+                }
+            };
+            var reference = await DialogService.ShowMessageBoxAsync(dialogParameters);
+
+            var result = await reference.Result;
+            if (!result.Cancelled)
+            {
+                // Force dashboard to reload.
+                NavigationManager.NavigateTo(DashboardUrls.ResourcesUrl(), forceLoad: true);
+            }
+        }
+    }
+
     protected override async Task OnAfterRenderAsync(bool firstRender)
     {
         if (firstRender)
@@ -280,6 +332,7 @@ private void CloseMobileNavMenu()
 
     public async ValueTask DisposeAsync()
     {
+        _disposalCts?.Cancel();
         _shortcutManagerReference?.Dispose();
         _layoutReference?.Dispose();
         _themeChangedSubscription?.Dispose();
diff --git a/src/Aspire.Dashboard/Resources/Dialogs.Designer.cs b/src/Aspire.Dashboard/Resources/Dialogs.Designer.cs
index c6fa7cbd1e4..1d795ab5093 100644
--- a/src/Aspire.Dashboard/Resources/Dialogs.Designer.cs
+++ b/src/Aspire.Dashboard/Resources/Dialogs.Designer.cs
@@ -60,6 +60,42 @@ internal Dialogs() {
             }
         }
         
+        /// <summary>
+        ///   Looks up a localized string similar to Cancel.
+        /// </summary>
+        public static string ConnectionErrorDialogCancelButton {
+            get {
+                return ResourceManager.GetString("ConnectionErrorDialogCancelButton", resourceCulture);
+            }
+        }
+        
+        /// <summary>
+        ///   Looks up a localized string similar to Unable to connect to the app host. Please ensure the app host is running and try again..
+        /// </summary>
+        public static string ConnectionErrorDialogMessage {
+            get {
+                return ResourceManager.GetString("ConnectionErrorDialogMessage", resourceCulture);
+            }
+        }
+        
+        /// <summary>
+        ///   Looks up a localized string similar to Retry.
+        /// </summary>
+        public static string ConnectionErrorDialogRetryButton {
+            get {
+                return ResourceManager.GetString("ConnectionErrorDialogRetryButton", resourceCulture);
+            }
+        }
+        
+        /// <summary>
+        ///   Looks up a localized string similar to Connection error.
+        /// </summary>
+        public static string ConnectionErrorDialogTitle {
+            get {
+                return ResourceManager.GetString("ConnectionErrorDialogTitle", resourceCulture);
+            }
+        }
+        
         /// <summary>
         ///   Looks up a localized string similar to Close.
         /// </summary>
diff --git a/src/Aspire.Dashboard/Resources/Dialogs.resx b/src/Aspire.Dashboard/Resources/Dialogs.resx
index 65c74a75ef8..079eb7ae16d 100644
--- a/src/Aspire.Dashboard/Resources/Dialogs.resx
+++ b/src/Aspire.Dashboard/Resources/Dialogs.resx
@@ -304,4 +304,16 @@
   <data name="InteractionButtonClose" xml:space="preserve">
     <value>Close</value>
   </data>
+  <data name="ConnectionErrorDialogTitle" xml:space="preserve">
+    <value>Connection error</value>
+  </data>
+  <data name="ConnectionErrorDialogMessage" xml:space="preserve">
+    <value>Unable to connect to the app host. Please ensure the app host is running and try again.</value>
+  </data>
+  <data name="ConnectionErrorDialogRetryButton" xml:space="preserve">
+    <value>Retry</value>
+  </data>
+  <data name="ConnectionErrorDialogCancelButton" xml:space="preserve">
+    <value>Cancel</value>
+  </data>
 </root>
\ No newline at end of file
diff --git a/src/Aspire.Dashboard/Resources/xlf/Dialogs.cs.xlf b/src/Aspire.Dashboard/Resources/xlf/Dialogs.cs.xlf
index cfedff51236..5fabf316882 100644
--- a/src/Aspire.Dashboard/Resources/xlf/Dialogs.cs.xlf
+++ b/src/Aspire.Dashboard/Resources/xlf/Dialogs.cs.xlf
@@ -2,6 +2,26 @@
 <xliff xmlns="urn:oasis:names:tc:xliff:document:1.2" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" version="1.2" xsi:schemaLocation="urn:oasis:names:tc:xliff:document:1.2 xliff-core-1.2-transitional.xsd">
   <file datatype="xml" source-language="en" target-language="cs" original="../Dialogs.resx">
     <body>
+      <trans-unit id="ConnectionErrorDialogCancelButton">
+        <source>Cancel</source>
+        <target state="new">Cancel</target>
+        <note />
+      </trans-unit>
+      <trans-unit id="ConnectionErrorDialogMessage">
+        <source>Unable to connect to the app host. Please ensure the app host is running and try again.</source>
+        <target state="new">Unable to connect to the app host. Please ensure the app host is running and try again.</target>
+        <note />
+      </trans-unit>
+      <trans-unit id="ConnectionErrorDialogRetryButton">
+        <source>Retry</source>
+        <target state="new">Retry</target>
+        <note />
+      </trans-unit>
+      <trans-unit id="ConnectionErrorDialogTitle">
+        <source>Connection error</source>
+        <target state="new">Connection error</target>
+        <note />
+      </trans-unit>
       <trans-unit id="DialogCloseButtonText">
         <source>Close</source>
         <target state="translated">Zavřít</target>
diff --git a/src/Aspire.Dashboard/Resources/xlf/Dialogs.de.xlf b/src/Aspire.Dashboard/Resources/xlf/Dialogs.de.xlf
index 7e0c94bfb60..36a5d09baaa 100644
--- a/src/Aspire.Dashboard/Resources/xlf/Dialogs.de.xlf
+++ b/src/Aspire.Dashboard/Resources/xlf/Dialogs.de.xlf
@@ -2,6 +2,26 @@
 <xliff xmlns="urn:oasis:names:tc:xliff:document:1.2" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" version="1.2" xsi:schemaLocation="urn:oasis:names:tc:xliff:document:1.2 xliff-core-1.2-transitional.xsd">
   <file datatype="xml" source-language="en" target-language="de" original="../Dialogs.resx">
     <body>
+      <trans-unit id="ConnectionErrorDialogCancelButton">
+        <source>Cancel</source>
+        <target state="new">Cancel</target>
+        <note />
+      </trans-unit>
+      <trans-unit id="ConnectionErrorDialogMessage">
+        <source>Unable to connect to the app host. Please ensure the app host is running and try again.</source>
+        <target state="new">Unable to connect to the app host. Please ensure the app host is running and try again.</target>
+        <note />
+      </trans-unit>
+      <trans-unit id="ConnectionErrorDialogRetryButton">
+        <source>Retry</source>
+        <target state="new">Retry</target>
+        <note />
+      </trans-unit>
+      <trans-unit id="ConnectionErrorDialogTitle">
+        <source>Connection error</source>
+        <target state="new">Connection error</target>
+        <note />
+      </trans-unit>
       <trans-unit id="DialogCloseButtonText">
         <source>Close</source>
         <target state="translated">Schließen</target>
diff --git a/src/Aspire.Dashboard/Resources/xlf/Dialogs.es.xlf b/src/Aspire.Dashboard/Resources/xlf/Dialogs.es.xlf
index b478e25a7c8..e8755dd63b7 100644
--- a/src/Aspire.Dashboard/Resources/xlf/Dialogs.es.xlf
+++ b/src/Aspire.Dashboard/Resources/xlf/Dialogs.es.xlf
@@ -2,6 +2,26 @@
 <xliff xmlns="urn:oasis:names:tc:xliff:document:1.2" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" version="1.2" xsi:schemaLocation="urn:oasis:names:tc:xliff:document:1.2 xliff-core-1.2-transitional.xsd">
   <file datatype="xml" source-language="en" target-language="es" original="../Dialogs.resx">
     <body>
+      <trans-unit id="ConnectionErrorDialogCancelButton">
+        <source>Cancel</source>
+        <target state="new">Cancel</target>
+        <note />
+      </trans-unit>
+      <trans-unit id="ConnectionErrorDialogMessage">
+        <source>Unable to connect to the app host. Please ensure the app host is running and try again.</source>
+        <target state="new">Unable to connect to the app host. Please ensure the app host is running and try again.</target>
+        <note />
+      </trans-unit>
+      <trans-unit id="ConnectionErrorDialogRetryButton">
+        <source>Retry</source>
+        <target state="new">Retry</target>
+        <note />
+      </trans-unit>
+      <trans-unit id="ConnectionErrorDialogTitle">
+        <source>Connection error</source>
+        <target state="new">Connection error</target>
+        <note />
+      </trans-unit>
       <trans-unit id="DialogCloseButtonText">
         <source>Close</source>
         <target state="translated">Cerrar</target>
diff --git a/src/Aspire.Dashboard/Resources/xlf/Dialogs.fr.xlf b/src/Aspire.Dashboard/Resources/xlf/Dialogs.fr.xlf
index 160022ba135..9782d2c0b98 100644
--- a/src/Aspire.Dashboard/Resources/xlf/Dialogs.fr.xlf
+++ b/src/Aspire.Dashboard/Resources/xlf/Dialogs.fr.xlf
@@ -2,6 +2,26 @@
 <xliff xmlns="urn:oasis:names:tc:xliff:document:1.2" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" version="1.2" xsi:schemaLocation="urn:oasis:names:tc:xliff:document:1.2 xliff-core-1.2-transitional.xsd">
   <file datatype="xml" source-language="en" target-language="fr" original="../Dialogs.resx">
     <body>
+      <trans-unit id="ConnectionErrorDialogCancelButton">
+        <source>Cancel</source>
+        <target state="new">Cancel</target>
+        <note />
+      </trans-unit>
+      <trans-unit id="ConnectionErrorDialogMessage">
+        <source>Unable to connect to the app host. Please ensure the app host is running and try again.</source>
+        <target state="new">Unable to connect to the app host. Please ensure the app host is running and try again.</target>
+        <note />
+      </trans-unit>
+      <trans-unit id="ConnectionErrorDialogRetryButton">
+        <source>Retry</source>
+        <target state="new">Retry</target>
+        <note />
+      </trans-unit>
+      <trans-unit id="ConnectionErrorDialogTitle">
+        <source>Connection error</source>
+        <target state="new">Connection error</target>
+        <note />
+      </trans-unit>
       <trans-unit id="DialogCloseButtonText">
         <source>Close</source>
         <target state="translated">Fermer</target>
diff --git a/src/Aspire.Dashboard/Resources/xlf/Dialogs.it.xlf b/src/Aspire.Dashboard/Resources/xlf/Dialogs.it.xlf
index cde31289088..1a8195570f0 100644
--- a/src/Aspire.Dashboard/Resources/xlf/Dialogs.it.xlf
+++ b/src/Aspire.Dashboard/Resources/xlf/Dialogs.it.xlf
@@ -2,6 +2,26 @@
 <xliff xmlns="urn:oasis:names:tc:xliff:document:1.2" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" version="1.2" xsi:schemaLocation="urn:oasis:names:tc:xliff:document:1.2 xliff-core-1.2-transitional.xsd">
   <file datatype="xml" source-language="en" target-language="it" original="../Dialogs.resx">
     <body>
+      <trans-unit id="ConnectionErrorDialogCancelButton">
+        <source>Cancel</source>
+        <target state="new">Cancel</target>
+        <note />
+      </trans-unit>
+      <trans-unit id="ConnectionErrorDialogMessage">
+        <source>Unable to connect to the app host. Please ensure the app host is running and try again.</source>
+        <target state="new">Unable to connect to the app host. Please ensure the app host is running and try again.</target>
+        <note />
+      </trans-unit>
+      <trans-unit id="ConnectionErrorDialogRetryButton">
+        <source>Retry</source>
+        <target state="new">Retry</target>
+        <note />
+      </trans-unit>
+      <trans-unit id="ConnectionErrorDialogTitle">
+        <source>Connection error</source>
+        <target state="new">Connection error</target>
+        <note />
+      </trans-unit>
       <trans-unit id="DialogCloseButtonText">
         <source>Close</source>
         <target state="translated">Chiudi</target>
diff --git a/src/Aspire.Dashboard/Resources/xlf/Dialogs.ja.xlf b/src/Aspire.Dashboard/Resources/xlf/Dialogs.ja.xlf
index 99fcb1970f7..ee4f3e8e5c1 100644
--- a/src/Aspire.Dashboard/Resources/xlf/Dialogs.ja.xlf
+++ b/src/Aspire.Dashboard/Resources/xlf/Dialogs.ja.xlf
@@ -2,6 +2,26 @@
 <xliff xmlns="urn:oasis:names:tc:xliff:document:1.2" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" version="1.2" xsi:schemaLocation="urn:oasis:names:tc:xliff:document:1.2 xliff-core-1.2-transitional.xsd">
   <file datatype="xml" source-language="en" target-language="ja" original="../Dialogs.resx">
     <body>
+      <trans-unit id="ConnectionErrorDialogCancelButton">
+        <source>Cancel</source>
+        <target state="new">Cancel</target>
+        <note />
+      </trans-unit>
+      <trans-unit id="ConnectionErrorDialogMessage">
+        <source>Unable to connect to the app host. Please ensure the app host is running and try again.</source>
+        <target state="new">Unable to connect to the app host. Please ensure the app host is running and try again.</target>
+        <note />
+      </trans-unit>
+      <trans-unit id="ConnectionErrorDialogRetryButton">
+        <source>Retry</source>
+        <target state="new">Retry</target>
+        <note />
+      </trans-unit>
+      <trans-unit id="ConnectionErrorDialogTitle">
+        <source>Connection error</source>
+        <target state="new">Connection error</target>
+        <note />
+      </trans-unit>
       <trans-unit id="DialogCloseButtonText">
         <source>Close</source>
         <target state="translated">閉じる</target>
diff --git a/src/Aspire.Dashboard/Resources/xlf/Dialogs.ko.xlf b/src/Aspire.Dashboard/Resources/xlf/Dialogs.ko.xlf
index effa069b862..c462d184560 100644
--- a/src/Aspire.Dashboard/Resources/xlf/Dialogs.ko.xlf
+++ b/src/Aspire.Dashboard/Resources/xlf/Dialogs.ko.xlf
@@ -2,6 +2,26 @@
 <xliff xmlns="urn:oasis:names:tc:xliff:document:1.2" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" version="1.2" xsi:schemaLocation="urn:oasis:names:tc:xliff:document:1.2 xliff-core-1.2-transitional.xsd">
   <file datatype="xml" source-language="en" target-language="ko" original="../Dialogs.resx">
     <body>
+      <trans-unit id="ConnectionErrorDialogCancelButton">
+        <source>Cancel</source>
+        <target state="new">Cancel</target>
+        <note />
+      </trans-unit>
+      <trans-unit id="ConnectionErrorDialogMessage">
+        <source>Unable to connect to the app host. Please ensure the app host is running and try again.</source>
+        <target state="new">Unable to connect to the app host. Please ensure the app host is running and try again.</target>
+        <note />
+      </trans-unit>
+      <trans-unit id="ConnectionErrorDialogRetryButton">
+        <source>Retry</source>
+        <target state="new">Retry</target>
+        <note />
+      </trans-unit>
+      <trans-unit id="ConnectionErrorDialogTitle">
+        <source>Connection error</source>
+        <target state="new">Connection error</target>
+        <note />
+      </trans-unit>
       <trans-unit id="DialogCloseButtonText">
         <source>Close</source>
         <target state="translated">닫기</target>
diff --git a/src/Aspire.Dashboard/Resources/xlf/Dialogs.pl.xlf b/src/Aspire.Dashboard/Resources/xlf/Dialogs.pl.xlf
index 9d89c27bde3..d44f88ab69e 100644
--- a/src/Aspire.Dashboard/Resources/xlf/Dialogs.pl.xlf
+++ b/src/Aspire.Dashboard/Resources/xlf/Dialogs.pl.xlf
@@ -2,6 +2,26 @@
 <xliff xmlns="urn:oasis:names:tc:xliff:document:1.2" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" version="1.2" xsi:schemaLocation="urn:oasis:names:tc:xliff:document:1.2 xliff-core-1.2-transitional.xsd">
   <file datatype="xml" source-language="en" target-language="pl" original="../Dialogs.resx">
     <body>
+      <trans-unit id="ConnectionErrorDialogCancelButton">
+        <source>Cancel</source>
+        <target state="new">Cancel</target>
+        <note />
+      </trans-unit>
+      <trans-unit id="ConnectionErrorDialogMessage">
+        <source>Unable to connect to the app host. Please ensure the app host is running and try again.</source>
+        <target state="new">Unable to connect to the app host. Please ensure the app host is running and try again.</target>
+        <note />
+      </trans-unit>
+      <trans-unit id="ConnectionErrorDialogRetryButton">
+        <source>Retry</source>
+        <target state="new">Retry</target>
+        <note />
+      </trans-unit>
+      <trans-unit id="ConnectionErrorDialogTitle">
+        <source>Connection error</source>
+        <target state="new">Connection error</target>
+        <note />
+      </trans-unit>
       <trans-unit id="DialogCloseButtonText">
         <source>Close</source>
         <target state="translated">Zamknij</target>
diff --git a/src/Aspire.Dashboard/Resources/xlf/Dialogs.pt-BR.xlf b/src/Aspire.Dashboard/Resources/xlf/Dialogs.pt-BR.xlf
index f71c735e474..44d1958ece5 100644
--- a/src/Aspire.Dashboard/Resources/xlf/Dialogs.pt-BR.xlf
+++ b/src/Aspire.Dashboard/Resources/xlf/Dialogs.pt-BR.xlf
@@ -2,6 +2,26 @@
 <xliff xmlns="urn:oasis:names:tc:xliff:document:1.2" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" version="1.2" xsi:schemaLocation="urn:oasis:names:tc:xliff:document:1.2 xliff-core-1.2-transitional.xsd">
   <file datatype="xml" source-language="en" target-language="pt-BR" original="../Dialogs.resx">
     <body>
+      <trans-unit id="ConnectionErrorDialogCancelButton">
+        <source>Cancel</source>
+        <target state="new">Cancel</target>
+        <note />
+      </trans-unit>
+      <trans-unit id="ConnectionErrorDialogMessage">
+        <source>Unable to connect to the app host. Please ensure the app host is running and try again.</source>
+        <target state="new">Unable to connect to the app host. Please ensure the app host is running and try again.</target>
+        <note />
+      </trans-unit>
+      <trans-unit id="ConnectionErrorDialogRetryButton">
+        <source>Retry</source>
+        <target state="new">Retry</target>
+        <note />
+      </trans-unit>
+      <trans-unit id="ConnectionErrorDialogTitle">
+        <source>Connection error</source>
+        <target state="new">Connection error</target>
+        <note />
+      </trans-unit>
       <trans-unit id="DialogCloseButtonText">
         <source>Close</source>
         <target state="translated">Fechar</target>
diff --git a/src/Aspire.Dashboard/Resources/xlf/Dialogs.ru.xlf b/src/Aspire.Dashboard/Resources/xlf/Dialogs.ru.xlf
index e47efce76f5..1d11e4a7100 100644
--- a/src/Aspire.Dashboard/Resources/xlf/Dialogs.ru.xlf
+++ b/src/Aspire.Dashboard/Resources/xlf/Dialogs.ru.xlf
@@ -2,6 +2,26 @@
 <xliff xmlns="urn:oasis:names:tc:xliff:document:1.2" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" version="1.2" xsi:schemaLocation="urn:oasis:names:tc:xliff:document:1.2 xliff-core-1.2-transitional.xsd">
   <file datatype="xml" source-language="en" target-language="ru" original="../Dialogs.resx">
     <body>
+      <trans-unit id="ConnectionErrorDialogCancelButton">
+        <source>Cancel</source>
+        <target state="new">Cancel</target>
+        <note />
+      </trans-unit>
+      <trans-unit id="ConnectionErrorDialogMessage">
+        <source>Unable to connect to the app host. Please ensure the app host is running and try again.</source>
+        <target state="new">Unable to connect to the app host. Please ensure the app host is running and try again.</target>
+        <note />
+      </trans-unit>
+      <trans-unit id="ConnectionErrorDialogRetryButton">
+        <source>Retry</source>
+        <target state="new">Retry</target>
+        <note />
+      </trans-unit>
+      <trans-unit id="ConnectionErrorDialogTitle">
+        <source>Connection error</source>
+        <target state="new">Connection error</target>
+        <note />
+      </trans-unit>
       <trans-unit id="DialogCloseButtonText">
         <source>Close</source>
         <target state="translated">Закрыть</target>
diff --git a/src/Aspire.Dashboard/Resources/xlf/Dialogs.tr.xlf b/src/Aspire.Dashboard/Resources/xlf/Dialogs.tr.xlf
index d32b503addb..04251ce671a 100644
--- a/src/Aspire.Dashboard/Resources/xlf/Dialogs.tr.xlf
+++ b/src/Aspire.Dashboard/Resources/xlf/Dialogs.tr.xlf
@@ -2,6 +2,26 @@
 <xliff xmlns="urn:oasis:names:tc:xliff:document:1.2" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" version="1.2" xsi:schemaLocation="urn:oasis:names:tc:xliff:document:1.2 xliff-core-1.2-transitional.xsd">
   <file datatype="xml" source-language="en" target-language="tr" original="../Dialogs.resx">
     <body>
+      <trans-unit id="ConnectionErrorDialogCancelButton">
+        <source>Cancel</source>
+        <target state="new">Cancel</target>
+        <note />
+      </trans-unit>
+      <trans-unit id="ConnectionErrorDialogMessage">
+        <source>Unable to connect to the app host. Please ensure the app host is running and try again.</source>
+        <target state="new">Unable to connect to the app host. Please ensure the app host is running and try again.</target>
+        <note />
+      </trans-unit>
+      <trans-unit id="ConnectionErrorDialogRetryButton">
+        <source>Retry</source>
+        <target state="new">Retry</target>
+        <note />
+      </trans-unit>
+      <trans-unit id="ConnectionErrorDialogTitle">
+        <source>Connection error</source>
+        <target state="new">Connection error</target>
+        <note />
+      </trans-unit>
       <trans-unit id="DialogCloseButtonText">
         <source>Close</source>
         <target state="translated">Kapat</target>
diff --git a/src/Aspire.Dashboard/Resources/xlf/Dialogs.zh-Hans.xlf b/src/Aspire.Dashboard/Resources/xlf/Dialogs.zh-Hans.xlf
index cce8e90d92b..a7d376bed4e 100644
--- a/src/Aspire.Dashboard/Resources/xlf/Dialogs.zh-Hans.xlf
+++ b/src/Aspire.Dashboard/Resources/xlf/Dialogs.zh-Hans.xlf
@@ -2,6 +2,26 @@
 <xliff xmlns="urn:oasis:names:tc:xliff:document:1.2" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" version="1.2" xsi:schemaLocation="urn:oasis:names:tc:xliff:document:1.2 xliff-core-1.2-transitional.xsd">
   <file datatype="xml" source-language="en" target-language="zh-Hans" original="../Dialogs.resx">
     <body>
+      <trans-unit id="ConnectionErrorDialogCancelButton">
+        <source>Cancel</source>
+        <target state="new">Cancel</target>
+        <note />
+      </trans-unit>
+      <trans-unit id="ConnectionErrorDialogMessage">
+        <source>Unable to connect to the app host. Please ensure the app host is running and try again.</source>
+        <target state="new">Unable to connect to the app host. Please ensure the app host is running and try again.</target>
+        <note />
+      </trans-unit>
+      <trans-unit id="ConnectionErrorDialogRetryButton">
+        <source>Retry</source>
+        <target state="new">Retry</target>
+        <note />
+      </trans-unit>
+      <trans-unit id="ConnectionErrorDialogTitle">
+        <source>Connection error</source>
+        <target state="new">Connection error</target>
+        <note />
+      </trans-unit>
       <trans-unit id="DialogCloseButtonText">
         <source>Close</source>
         <target state="translated">关闭</target>
diff --git a/src/Aspire.Dashboard/Resources/xlf/Dialogs.zh-Hant.xlf b/src/Aspire.Dashboard/Resources/xlf/Dialogs.zh-Hant.xlf
index f00217e136f..89c18304374 100644
--- a/src/Aspire.Dashboard/Resources/xlf/Dialogs.zh-Hant.xlf
+++ b/src/Aspire.Dashboard/Resources/xlf/Dialogs.zh-Hant.xlf
@@ -2,6 +2,26 @@
 <xliff xmlns="urn:oasis:names:tc:xliff:document:1.2" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" version="1.2" xsi:schemaLocation="urn:oasis:names:tc:xliff:document:1.2 xliff-core-1.2-transitional.xsd">
   <file datatype="xml" source-language="en" target-language="zh-Hant" original="../Dialogs.resx">
     <body>
+      <trans-unit id="ConnectionErrorDialogCancelButton">
+        <source>Cancel</source>
+        <target state="new">Cancel</target>
+        <note />
+      </trans-unit>
+      <trans-unit id="ConnectionErrorDialogMessage">
+        <source>Unable to connect to the app host. Please ensure the app host is running and try again.</source>
+        <target state="new">Unable to connect to the app host. Please ensure the app host is running and try again.</target>
+        <note />
+      </trans-unit>
+      <trans-unit id="ConnectionErrorDialogRetryButton">
+        <source>Retry</source>
+        <target state="new">Retry</target>
+        <note />
+      </trans-unit>
+      <trans-unit id="ConnectionErrorDialogTitle">
+        <source>Connection error</source>
+        <target state="new">Connection error</target>
+        <note />
+      </trans-unit>
       <trans-unit id="DialogCloseButtonText">
         <source>Close</source>
         <target state="translated">關閉</target>