diff --git a/Nebula.Launcher/Assets/Style.axaml b/Nebula.Launcher/Assets/Style.axaml
index 014fe4d..99c158b 100644
--- a/Nebula.Launcher/Assets/Style.axaml
+++ b/Nebula.Launcher/Assets/Style.axaml
@@ -1,17 +1,28 @@
-<Styles xmlns="https://github.com/avaloniaui" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+<Styles xmlns="https://github.com/avaloniaui" 
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
         xmlns:pages="clr-namespace:Nebula.Launcher.ViewModels.Pages">
+    
+    <!-- Base Window Style -->
     <Style Selector="Window">
         <Setter Property="Background" Value="{StaticResource DefaultBackground}" />
     </Style>
+
+    <!-- Common Border Style -->
     <Style Selector="Border">
         <Setter Property="CornerRadius" Value="10" />
     </Style>
+
+    <!-- Common Label Style -->
     <Style Selector="Label">
         <Setter Property="Foreground" Value="#f7f7ff" />
     </Style>
+
+    <!-- Common ItemsControl Style -->
     <Style Selector="ItemsControl">
         <Setter Property="Background" Value="Transparent" />
     </Style>
+
+    <!-- General Button Style -->
     <Style Selector="Button">
         <Setter Property="BorderBrush" Value="#343334" />
         <Setter Property="BorderThickness" Value="0" />
@@ -20,6 +31,7 @@
         <Setter Property="Background" Value="Transparent" />
     </Style>
 
+    <!-- Button State Overrides -->
     <Style Selector="Button:pressed">
         <Setter Property="RenderTransform" Value="{x:Null}" />
         <Setter Property="BorderThickness" Value="0,0,0,2" />
@@ -31,26 +43,33 @@
         <Setter Property="BorderThickness" Value="0,0,0,0" />
     </Style>
 
+    <!-- ViewSelectButton Specialization -->
     <Style Selector="Button.ViewSelectButton">
         <Setter Property="CornerRadius" Value="0,8,8,0" />
         <Setter Property="Margin" Value="0,0,0,5" />
         <Setter Property="Padding" Value="8" />
-        <Setter Property="Background" Value="Transparent" />
     </Style>
 
     <Style Selector="Button.ViewSelectButton:pressed">
         <Setter Property="BorderThickness" Value="0,0,0,0" />
     </Style>
 
+    <!-- TextBox Styles -->
     <Style Selector="TextBox">
         <Setter Property="Foreground" Value="#f7f7ff" />
         <Setter Property="SelectionForegroundBrush" Value="#f7f7ff" />
-        <Setter Property="BorderThickness" Value="0,0,0,0" />
+        <Setter Property="BorderThickness" Value="0" />
         <Setter Property="BorderBrush" Value="#f7f7ff" />
         <Setter Property="Background" Value="Transparent" />
     </Style>
-    <Style Selector="TextBox" />
 
+    <Style Selector="TextBox:focus /template/ Border#PART_BorderElement">
+        <Setter Property="BorderBrush" Value="White" />
+        <Setter Property="Background" Value="Transparent" />
+        <Setter Property="BorderThickness" Value="0,0,0,1" />
+    </Style>
+
+    <!-- ListBoxItem Styles -->
     <Style Selector="ListBoxItem /template/ ContentPresenter">
         <Setter Property="CornerRadius" Value="0,8,8,0" />
         <Setter Property="Margin" Value="0,0,0,5" />
@@ -61,66 +80,37 @@
     <Style Selector="ListBoxItem:selected /template/ ContentPresenter">
         <Setter Property="CornerRadius" Value="0,8,8,0" />
         <Setter Property="Background">
-            <LinearGradientBrush EndPoint="100%,50%" StartPoint="0%,50%">
-                <GradientStop Color="#ae4c47" Offset="0.0" />
-                <GradientStop Color="#D95F59" Offset="0.2" />
-                <GradientStop Color="#D95F59" Offset="1.0" />
-            </LinearGradientBrush>
+            <Setter.Value>
+                <LinearGradientBrush EndPoint="100%,50%" StartPoint="0%,50%">
+                    <GradientStop Color="#ae4c47" Offset="0.0" />
+                    <GradientStop Color="#D95F59" Offset="0.2" />
+                    <GradientStop Color="#D95F59" Offset="1.0" />
+                </LinearGradientBrush>
+            </Setter.Value>
         </Setter>
         <Setter Property="BoxShadow" Value="0 0 15 1 #1212" />
     </Style>
+
     <Style Selector="ListBoxItem:pointerover">
         <Setter Property="CornerRadius" Value="0,8,8,0" />
         <Setter Property="Margin" Value="0,0,5,0" />
     </Style>
+
     <Style Selector="ListBoxItem:pressed /template/ ContentPresenter">
         <Setter Property="CornerRadius" Value="0,8,8,0" />
         <Setter Property="Background" Value="{StaticResource DefaultSelected}" />
     </Style>
 
-    <Style Selector="TextBox">
-        <Setter Property="Background" Value="Transparent" />
-    </Style>
-    <Style Selector="TextBox:focus /template/ Border#PART_BorderElement">
-        <Setter Property="BorderBrush" Value="White" />
-        <Setter Property="Background" Value="Transparent" />
-        <Setter Property="BorderThickness" Value="0,0,0,1" />
-    </Style>
-    
-    <Style Selector="pages|ComplexUnitConfigControl.ConfigBorder">
-        <Setter Property="Background" Value="#333333" />
-        <Setter Property="BorderThickness" Value="2,2,2,2"/>
-        <Setter Property="BorderBrush" Value="Azure"/>
-    </Style>
-    
-    <Style Selector="pages|ArrayUnitConfigControl.ConfigBorder">
-        <Setter Property="Background" Value="#333333" />
-        <Setter Property="BorderThickness" Value="2,2,2,2"/>
-        <Setter Property="BorderBrush" Value="Azure"/>
-    </Style>
-    
-    <Style Selector="pages|StringUnitConfigControl.ConfigBorder">
-        <Setter Property="Background" Value="#333333" />
-        <Setter Property="BorderThickness" Value="2,2,2,2"/>
-        <Setter Property="BorderBrush" Value="Azure"/>
-    </Style>
-    
-    <Style Selector="pages|IntUnitConfigControl.ConfigBorder">
-        <Setter Property="Background" Value="#333333" />
-        <Setter Property="BorderThickness" Value="2,2,2,2"/>
-        <Setter Property="BorderBrush" Value="Azure"/>
-    </Style>
-    
-    <Style Selector="pages|FloatUnitConfigControl.ConfigBorder">
-        <Setter Property="Background" Value="#333333" />
-        <Setter Property="BorderThickness" Value="2,2,2,2"/>
-        <Setter Property="BorderBrush" Value="Azure"/>
-    </Style>
-    
-    <Style Selector="Button.ConfigBorder /template/ ContentPresenter">
-        <Setter Property="Background" Value="#333333" />
-        <Setter Property="BorderThickness" Value="2,2,2,2"/>
-        <Setter Property="BorderBrush" Value="Azure"/>
-        <Setter Property="CornerRadius" Value="0"/>
-    </Style>
+    <!-- Combined ConfigBorder Styles -->
+    <Style Selector="pages|ComplexUnitConfigControl.ConfigBorder, 
+                 pages|ArrayUnitConfigControl.ConfigBorder, 
+                 pages|StringUnitConfigControl.ConfigBorder, 
+                 pages|IntUnitConfigControl.ConfigBorder, 
+                 pages|FloatUnitConfigControl.ConfigBorder">
+    <Setter Property="Background" Value="#333333" />
+    <Setter Property="CornerRadius" Value="5"/>
+    <Setter Property="BorderThickness" Value="1,0,1,2" />
+    <Setter Property="BorderBrush" Value="Azure" />
+</Style>
+
 </Styles>
\ No newline at end of file
diff --git a/Nebula.Launcher/LauncherConVar.cs b/Nebula.Launcher/LauncherConVar.cs
index c40287f..d4b1ae7 100644
--- a/Nebula.Launcher/LauncherConVar.cs
+++ b/Nebula.Launcher/LauncherConVar.cs
@@ -7,6 +7,8 @@ namespace Nebula.Launcher;
 
 public static class LauncherConVar
 {
+    public static readonly ConVar<bool> DoMigration =
+        ConVarBuilder.Build("migration.doMigrate", true);
     public static readonly ConVar<ProfileAuthCredentials[]> AuthProfiles =
         ConVarBuilder.Build<ProfileAuthCredentials[]>("auth.profiles.v2", []);
 
diff --git a/Nebula.Launcher/ViewModels/MainViewModel.cs b/Nebula.Launcher/ViewModels/MainViewModel.cs
index ce4f743..9c3237f 100644
--- a/Nebula.Launcher/ViewModels/MainViewModel.cs
+++ b/Nebula.Launcher/ViewModels/MainViewModel.cs
@@ -45,7 +45,7 @@ public partial class MainViewModel : ViewModelBase
     [GenerateProperty] private PopupMessageService PopupMessageService { get; } = default!;
     [GenerateProperty] private ContentService ContentService { get; } = default!;
     [GenerateProperty, DesignConstruct] private ViewHelperService ViewHelperService { get; } = default!;
-    [GenerateProperty] private FileService FileService { get; } = default!;
+    [GenerateProperty] private ConfigurationService ConfigurationService { get; } = default!;
 
     private ILogger _logger;
 
@@ -83,14 +83,18 @@ public partial class MainViewModel : ViewModelBase
 
     private void CheckMigration()
     {
+        if (!ConfigurationService.GetConfigValue(LauncherConVar.DoMigration))
+            return;
+
         var loadingHandler = ViewHelperService.GetViewModel<LoadingContextViewModel>();
         loadingHandler.LoadingName = "Migration task, please wait...";
         loadingHandler.IsCancellable = false;
 
         if (!ContentService.CheckMigration(loadingHandler))
             return;
-        
+
         OnPopupRequired(loadingHandler);
+        ConfigurationService.SetConfigValue(LauncherConVar.DoMigration, false);
     }
 
     partial void OnSelectedListItemChanged(ListItemTemplate? value)
diff --git a/Nebula.Launcher/ViewModels/Pages/AccountInfoViewModel.cs b/Nebula.Launcher/ViewModels/Pages/AccountInfoViewModel.cs
index 90a142d..f21ef28 100644
--- a/Nebula.Launcher/ViewModels/Pages/AccountInfoViewModel.cs
+++ b/Nebula.Launcher/ViewModels/Pages/AccountInfoViewModel.cs
@@ -2,6 +2,7 @@ using System;
 using System.Collections.Generic;
 using System.Collections.ObjectModel;
 using System.Linq;
+using System.Net.Http;
 using System.Text.Json.Serialization;
 using System.Threading.Tasks;
 using System.Windows.Input;
@@ -34,6 +35,7 @@ public partial class AccountInfoViewModel : ViewModelBase
     [ObservableProperty] private string _currentPassword = string.Empty;
 
     [ObservableProperty] private bool _isLogged;
+    [ObservableProperty] private bool _doRetryAuth;
 
     private bool _isProfilesEmpty;
     [GenerateProperty] private PopupMessageService PopupMessageService { get; } = default!;
@@ -62,7 +64,7 @@ public partial class AccountInfoViewModel : ViewModelBase
     protected override void Initialise()
     {
         _logger = DebugService.GetLogger(this);
-        ReadAuthConfig();
+        Task.Run(ReadAuthConfig);
     }
 
     public void AuthByProfile(ProfileAuthCredentials credentials)
@@ -95,12 +97,14 @@ public partial class AccountInfoViewModel : ViewModelBase
             {
                 try
                 {
-                    await TryAuth(CurrentLogin, CurrentPassword, server,code);
+                    await CatchAuthError(async () => await TryAuth(CurrentLogin, CurrentPassword, server, code), ()=> message.Dispose());
                     break;
                 }
-                catch (Exception e)
+                catch (Exception ex)
                 {
-                    exception = e;
+                    var unexpectedError = new Exception("An unexpected error occurred during authentication.", ex);
+                    _logger.Error(unexpectedError);
+                    PopupMessageService.Popup(unexpectedError);
                 }
             }
             
@@ -113,19 +117,35 @@ public partial class AccountInfoViewModel : ViewModelBase
         });
     }
 
-    private async Task TryAuth(string login, string password, string authServer,string? code)
+    private async Task TryAuth(CurrentAuthInfo currentAuthInfo)
     {
+        CurrentLogin = currentAuthInfo.Login;
+        CurrentAuthServer = currentAuthInfo.AuthServer;
+        await AuthService.SetAuth(currentAuthInfo);
+        IsLogged = true;
+    }
+
+    private async Task TryAuth(string login, string password, string authServer, string? code)
+    {
+        await AuthService.Auth(new AuthLoginPassword(login, password, authServer), code);
+        CurrentLogin = login;
+        CurrentPassword = password;
+        CurrentAuthServer = authServer;
+        IsLogged = true;
+        ConfigurationService.SetConfigValue(LauncherConVar.AuthCurrent, AuthService.SelectedAuth);
+    }
+
+    private async Task CatchAuthError(Func<Task> a, Action? onError)
+    {
+        DoRetryAuth = false;
+
         try
         {
-            await AuthService.Auth(new AuthLoginPassword(login, password, authServer), code);
-            CurrentLogin = login;
-            CurrentPassword = password;
-            CurrentAuthServer = authServer;
-            IsLogged = true;
-            ConfigurationService.SetConfigValue(LauncherConVar.AuthCurrent, AuthService.SelectedAuth);
+            await a();
         }
         catch (AuthException e)
         {
+            onError?.Invoke();
             switch (e.Error.Code)
             {
                 case AuthenticateDenyCode.TfaRequired:
@@ -136,13 +156,34 @@ public partial class AccountInfoViewModel : ViewModelBase
                     _logger.Log("TFA required");
                     break;
                 case AuthenticateDenyCode.InvalidCredentials:
-                    PopupMessageService.Popup("Invalid Credentials!");
-                    _logger.Error($"Invalid credentials");
+                    PopupError("Invalid Credentials! Please, try another password or login!", e);
                     break;
                 default:
                     throw;
             }
         }
+        catch (HttpRequestException e)
+        {
+            onError?.Invoke();
+            switch (e.HttpRequestError)
+            {
+                case HttpRequestError.ConnectionError:
+                    PopupError("Failed to connect to the authentication server.", e);
+                    DoRetryAuth = true;
+                    break;
+
+                case HttpRequestError.NameResolutionError:
+                    PopupError("Unable to resolve the server address.", e);
+                    DoRetryAuth = true;
+                    break;
+
+                default:
+                    var authError = new Exception("An error occurred during authentication.", e);
+                    _logger.Error(authError);
+                    PopupMessageService.Popup(authError);
+                    break;
+            }
+        }
     }
 
     private void OnTfaEntered(string code)
@@ -182,7 +223,7 @@ public partial class AccountInfoViewModel : ViewModelBase
         Accounts.Add(alpm);
     }
 
-    private async void ReadAuthConfig()
+    private async Task ReadAuthConfig()
     {
         var message = ViewHelperService.GetViewModel<InfoPopupViewModel>();
         message.InfoText = "Read configuration file, please wait...";
@@ -198,25 +239,35 @@ public partial class AccountInfoViewModel : ViewModelBase
         var authUrls = ConfigurationService.GetConfigValue(LauncherConVar.AuthServers)!;
         foreach (var url in authUrls) AuthUrls.Add(url);
         if(authUrls.Length > 0) AuthItemSelect = authUrls[0];
-        
+        message.Dispose();
+
+        DoCurrentAuth();
+    }
+
+    public async void DoCurrentAuth()
+    {
+        var message = ViewHelperService.GetViewModel<InfoPopupViewModel>();
+        message.InfoText = "Trying to auth with saved data...";
+        message.IsInfoClosable = false;
+        PopupMessageService.Popup(message);
+
         var currProfile = ConfigurationService.GetConfigValue(LauncherConVar.AuthCurrent);
 
         if (currProfile != null)
         {
             try
             {
-                CurrentLogin = currProfile.Login;
-                CurrentAuthServer = currProfile.AuthServer;
-
-                IsLogged = await AuthService.SetAuth(currProfile);
+                await CatchAuthError(async () => await TryAuth(currProfile), () => message.Dispose());
             }
-            catch (Exception e)
+            catch (Exception ex)
             {
-                message.Dispose();
-                PopupMessageService.Popup(e);
+                var unexpectedError = new Exception("An unexpected error occurred during authentication.", ex);
+                _logger.Error(unexpectedError);
+                PopupMessageService.Popup(unexpectedError);
+                return;
             }
         }
-        
+
         message.Dispose();
     }
 
@@ -237,6 +288,17 @@ public partial class AccountInfoViewModel : ViewModelBase
         DirtyProfile();
     }
 
+    private void PopupError(string message, Exception e)
+    {
+        message = "An error occurred during authentication: " + message;
+        _logger.Error(new Exception(message, e));
+
+        var messageView = ViewHelperService.GetViewModel<InfoPopupViewModel>();
+        messageView.InfoText = message;
+        messageView.IsInfoClosable = true;
+        PopupMessageService.Popup(messageView);
+    }
+
     [RelayCommand]
     private void OnExpandAuthUrl()
     {
diff --git a/Nebula.Launcher/Views/Pages/AccountInfoView.axaml b/Nebula.Launcher/Views/Pages/AccountInfoView.axaml
index e5fe40b..acd70a0 100644
--- a/Nebula.Launcher/Views/Pages/AccountInfoView.axaml
+++ b/Nebula.Launcher/Views/Pages/AccountInfoView.axaml
@@ -102,6 +102,17 @@
                             Margin="0,0,0,20"
                             Path="/Assets/svg/user.svg" />
                         <StackPanel HorizontalAlignment="Center">
+                            <StackPanel IsVisible="{Binding DoRetryAuth}">
+                                <Border Background="{StaticResource DefaultSelected}" BoxShadow="{StaticResource DefaultShadow}">
+                                    <Button
+                                        Command="{Binding DoCurrentAuth}"
+                                        HorizontalAlignment="Stretch"
+                                        HorizontalContentAlignment="Center">
+                                        <Label>Retry previous auth</Label>
+                                    </Button>
+                                </Border>
+                                <Label HorizontalAlignment="Center">Or try another account</Label>
+                            </StackPanel>
                             <StackPanel Orientation="Horizontal">
                                 <Label VerticalAlignment="Center">
                                     Login:
diff --git a/Nebula.Shared/Services/AuthService.cs b/Nebula.Shared/Services/AuthService.cs
index fb2b012..1f9a846 100644
--- a/Nebula.Shared/Services/AuthService.cs
+++ b/Nebula.Shared/Services/AuthService.cs
@@ -53,25 +53,21 @@ public class AuthService(
         SelectedAuth = null;
     }
 
-    public async Task<bool> SetAuth(CurrentAuthInfo info)
+    public async Task SetAuth(CurrentAuthInfo info)
     {
         SelectedAuth = info;
-        return await EnsureToken();
+        await EnsureToken();
     }
 
-    public async Task<bool> EnsureToken()
+    public async Task EnsureToken()
     {
-        if (SelectedAuth is null) return false;
+        if (SelectedAuth is null) throw new Exception("Auth info is not set!");
 
         var authUrl = new Uri($"{SelectedAuth.AuthServer}api/auth/ping");
 
         using var requestMessage = new HttpRequestMessage(HttpMethod.Get, authUrl);
         requestMessage.Headers.Authorization = new AuthenticationHeaderValue("SS14Auth", SelectedAuth.Token.Token);
         using var resp = await _httpClient.SendAsync(requestMessage, cancellationService.Token);
-
-        if (!resp.IsSuccessStatusCode) SelectedAuth = null;
-
-        return resp.IsSuccessStatusCode;
     }
 }