diff --git a/src/PlcInterface.Ads/IServiceCollectionExtension.cs b/src/PlcInterface.Ads/IServiceCollectionExtension.cs
index ab540f76..d9bed9b0 100644
--- a/src/PlcInterface.Ads/IServiceCollectionExtension.cs
+++ b/src/PlcInterface.Ads/IServiceCollectionExtension.cs
@@ -1,6 +1,5 @@
 using System.IO.Abstractions;
 using Microsoft.Extensions.DependencyInjection;
-using Microsoft.Extensions.Logging;
 using PlcInterface.Ads.TwinCATAbstractions;
 
 namespace PlcInterface.Ads;
@@ -25,7 +24,7 @@ public static IServiceCollection AddAdsPLC(this IServiceCollection serviceDescri
             .AddSingletonFactory<PlcConnection, IPlcConnection<TwinCAT.Ads.IAdsConnection>, IAdsPlcConnection>()
             .AddSingleton<IPlcConnection>(x => x.GetRequiredService<IAdsPlcConnection>())
             .AddTransient<IAdsTypeConverter, AdsTypeConverter>()
-            .AddSingleton<TwinCAT.Ads.IAdsDisposableConnection, TwinCAT.Ads.AdsClient>(x => new TwinCAT.Ads.AdsClient(x.GetRequiredService<ILogger<TwinCAT.Ads.AdsClient>>()))
+            .AddSingleton<TwinCAT.Ads.IAdsDisposableConnection, TwinCAT.Ads.AdsClient>()
             .AddSingleton<IFileSystem, FileSystem>()
             .AddSingleton<ISymbolLoaderFactory, SymbolLoaderFactoryAbstraction>()
             .AddSingleton<ISumSymbolFactory, SumSymbolFactory>()
diff --git a/src/PlcInterface.Ads/PlcConnection.cs b/src/PlcInterface.Ads/PlcConnection.cs
index 174a6f93..feab6667 100644
--- a/src/PlcInterface.Ads/PlcConnection.cs
+++ b/src/PlcInterface.Ads/PlcConnection.cs
@@ -71,12 +71,12 @@ public void Disconnect()
         => DisconnectAsync().GetAwaiter().GetResult();
 
     /// <inheritdoc/>
-    public Task DisconnectAsync()
-        => Task.Run(() =>
-        {
-            _ = adsDisposableConnection.Disconnect();
-            adsDisposableConnection.ConnectionStateChanged -= AdsDisposableConnection_ConnectionStateChanged;
-        });
+    public async Task DisconnectAsync()
+    {
+        using var timeoutCts = new CancellationTokenSource(TimeSpan.FromSeconds(2));
+        _ = await adsDisposableConnection.DisconnectAsync(timeoutCts.Token).ConfigureAwait(false);
+        adsDisposableConnection.ConnectionStateChanged -= AdsDisposableConnection_ConnectionStateChanged;
+    }
 
     /// <inheritdoc/>
     public void Dispose()
diff --git a/src/PlcInterface.Ads/PlcInterface.Ads.csproj b/src/PlcInterface.Ads/PlcInterface.Ads.csproj
index 9b0f1c58..b94278fc 100644
--- a/src/PlcInterface.Ads/PlcInterface.Ads.csproj
+++ b/src/PlcInterface.Ads/PlcInterface.Ads.csproj
@@ -18,9 +18,9 @@
 
   <ItemGroup>
     <PackageReference Include="Microsoft.CSharp" Version="4.7.0" />
-    <PackageReference Include="Beckhoff.TwinCAT.Ads" Version="6.1.203" />
-    <PackageReference Include="Beckhoff.TwinCAT.Ads.Reactive" Version="6.1.203" />
-    <PackageReference Include="Microsoft.Extensions.Logging.Abstractions" Version="8.0.2" />
+    <PackageReference Include="Beckhoff.TwinCAT.Ads" Version="7.0.123" />
+    <PackageReference Include="Beckhoff.TwinCAT.Ads.Reactive" Version="7.0.123" />
+    <PackageReference Include="Microsoft.Extensions.Logging.Abstractions" Version="8.0.3" />
     <PackageReference Include="Microsoft.Extensions.Options" Version="9.0.4" />
     <PackageReference Include="System.IO.Abstractions" Version="22.0.15" />
   </ItemGroup>
diff --git a/src/PlcInterface.Ads/TwincatAbstractions/SumSymbolReadAbstraction.cs b/src/PlcInterface.Ads/TwincatAbstractions/SumSymbolReadAbstraction.cs
index 531c14ee..bc818e4b 100644
--- a/src/PlcInterface.Ads/TwincatAbstractions/SumSymbolReadAbstraction.cs
+++ b/src/PlcInterface.Ads/TwincatAbstractions/SumSymbolReadAbstraction.cs
@@ -10,7 +10,7 @@ namespace PlcInterface.Ads.TwinCATAbstractions;
 /// <inheritdoc cref="SumSymbolRead"/>
 internal sealed class SumSymbolReadAbstraction(IAdsConnection connection, IList<ISymbol> symbols) : ISumSymbolRead
 {
-    private readonly SumSymbolRead backend = new(connection, symbols);
+    private readonly SumSymbolRead backend = new(connection, symbols, SumFallbackMode.All);
 
     /// <inheritdoc/>
     public object[] Read()
diff --git a/src/PlcInterface.Ads/TwincatAbstractions/SumSymbolWriteAbstraction.cs b/src/PlcInterface.Ads/TwincatAbstractions/SumSymbolWriteAbstraction.cs
index 1002c58c..adf99444 100644
--- a/src/PlcInterface.Ads/TwincatAbstractions/SumSymbolWriteAbstraction.cs
+++ b/src/PlcInterface.Ads/TwincatAbstractions/SumSymbolWriteAbstraction.cs
@@ -10,7 +10,7 @@ namespace PlcInterface.Ads.TwinCATAbstractions;
 /// <inheritdoc cref="SumSymbolRead"/>
 internal sealed class SumSymbolWriteAbstraction(IAdsConnection connection, IList<ISymbol> symbols) : ISumSymbolWrite
 {
-    private readonly SumSymbolWrite backend = new(connection, symbols);
+    private readonly SumSymbolWrite backend = new(connection, symbols, SumFallbackMode.All);
 
     /// <inheritdoc/>
     public void Write(object[] values)
diff --git a/src/PlcInterface.Sandbox/PlcInterface.Sandbox.csproj b/src/PlcInterface.Sandbox/PlcInterface.Sandbox.csproj
index 0498caaa..e5e8c981 100644
--- a/src/PlcInterface.Sandbox/PlcInterface.Sandbox.csproj
+++ b/src/PlcInterface.Sandbox/PlcInterface.Sandbox.csproj
@@ -13,7 +13,7 @@
     <PackageReference Include="Vectron.InteractiveConsole" Version="1.0.68" />
     <PackageReference Include="Microsoft.Extensions.Hosting" Version="9.0.3" />
     <PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="9.0.4" />
-    <PackageReference Include="Beckhoff.TwinCAT.Ads.TcpRouter" Version="6.1.203" />
+    <PackageReference Include="Beckhoff.TwinCAT.Ads.TcpRouter" Version="7.0.123" />
   </ItemGroup>
 
   <ItemGroup>
diff --git a/src/PlcInterface.Sandbox/Program.cs b/src/PlcInterface.Sandbox/Program.cs
index 182a29e4..29e458d4 100644
--- a/src/PlcInterface.Sandbox/Program.cs
+++ b/src/PlcInterface.Sandbox/Program.cs
@@ -1,7 +1,5 @@
-using Microsoft.Extensions.Configuration;
 using Microsoft.Extensions.DependencyInjection;
 using Microsoft.Extensions.Hosting;
-using Microsoft.Extensions.Logging;
 using PlcInterface.Ads;
 using PlcInterface.OpcUa;
 using PlcInterface.Sandbox.PLCCommands;
@@ -58,7 +56,7 @@ private static async Task Main(string[] args)
 
         _ = builder.Services
             .AddAdsPLC()
-            .AddSingleton<IAmsRouter>(x => new AmsTcpIpRouter(x.GetRequiredService<ILogger<AmsTcpIpRouter>>(), x.GetRequiredService<IConfiguration>()))
+            .AddSingleton<IAmsRouter, AmsTcpIpRouter>()
             .AddOptions<AdsPlcConnectionOptions>()
                 .BindConfiguration(AdsConnectionSettingsSection)
                 .Services
diff --git a/test/PlcInterface.Ads.Tests/PlcConnectionTests.cs b/test/PlcInterface.Ads.Tests/PlcConnectionTests.cs
index 5f0de2f2..6fd286cb 100644
--- a/test/PlcInterface.Ads.Tests/PlcConnectionTests.cs
+++ b/test/PlcInterface.Ads.Tests/PlcConnectionTests.cs
@@ -141,7 +141,7 @@ public void DisconnectCallsDisconnectOnClient()
         connection.Disconnect();
 
         // Assert
-        adsClientMock.Verify(x => x.Disconnect(), Times.Once);
+        adsClientMock.Verify(x => x.DisconnectAsync(It.IsAny<CancellationToken>()), Times.Once);
     }
 
     [TestMethod]
@@ -161,7 +161,7 @@ public async Task DisconnectCallsDisconnectOnClientAsync()
         await connection.DisconnectAsync();
 
         // Assert
-        adsClientMock.Verify(x => x.Disconnect(), Times.Once);
+        adsClientMock.Verify(x => x.DisconnectAsync(It.IsAny<CancellationToken>()), Times.Once);
     }
 
     [TestMethod]