Just installed Mendix 9.7.0 on Windows 11 machine (open internet connection). When starting the application it crashes generating the following exceptions: System.Net.HttpListenerException (0x80004005): The format of the specified network name is invalid at System.Net.HttpListener.AddAllPrefixes() at System.Net.HttpListener.Start() at Mendix.Modeler.WebServer.ModelerWebServer.Init() in C:\Users\Autobuild\workspace\AppStudio4.0-Build\modeler\Mendix.Modeler.Core.View.CrossPlatform\WebServer\ModelerWebServer.cs:line 44 at Mendix.Modeler.Plugins.Gui.GuiPluginManager.Init() in C:\Users\Autobuild\workspace\AppStudio4.0-Build\modeler\Mendix.Modeler.Core.View.CrossPlatform\Plugins\GuiPluginManager.cs:line 19 at Mendix.Modeler.Core.View.MainWindow.MainWindow.Init() in C:\Users\Autobuild\workspace\AppStudio4.0-Build\modeler\Mendix.Modeler.Core.View.CrossPlatform\MainWindow\MainWindow.cs:line 120 at Mendix.Modeler.MainWindow.MainWindowFactory.Create() in C:\Users\Autobuild\workspace\AppStudio4.0-Build\modeler\Mendix.Modeler.MainWindow\MainWindow\MainWindowFactory.cs:line 68 at System.Linq.Enumerable.WhereSelectEnumerableIterator`2.MoveNext() at System.Collections.Generic.Queue`1..ctor(IEnumerable`1 collection) at Mendix.Modeler.MainWindow.Program.<InitApplicationAsync>d__13.MoveNext() in C:\Users\Autobuild\workspace\AppStudio4.0-Build\modeler\Mendix.Modeler.MainWindow\Program.cs:line 139 System.NullReferenceException: Object reference not set to an instance of an object. at Mendix.Modeler.MainWindow.Program.OnMainFormClosing(Object sender, EventArgs args) in C:\Users\Autobuild\workspace\AppStudio4.0-Build\modeler\Mendix.Modeler.MainWindow\Program.cs:line 157 at Eto.PropertyStore.TriggerEvent[T](Object key, Object sender, T args) at Eto.Forms.Window.OnClosing(CancelEventArgs e) at Eto.Forms.Window.Callback.OnClosing(Window widget, CancelEventArgs e) at Eto.Wpf.Forms.WpfWindow`3.Control_Closing(Object sender, CancelEventArgs e) at System.Windows.Window.OnClosing(CancelEventArgs e) at System.Windows.Window.WmClose() at System.Windows.Window.WindowFilterMessage(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled) at System.Windows.Interop.HwndSource.PublicHooksFilterMessage(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled) at MS.Win32.HwndWrapper.WndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled) at MS.Win32.HwndSubclass.DispatcherCallbackOperation(Object o) at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs) at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Int32 numArgs, Delegate catchHandler) For Mendix 8.17.1 the same applies, exceptions thrown: SimpleInjector.ActivationException: The format of the specified network name is invalid ---> System.Net.HttpListenerException: The format of the specified network name is invalid at System.Net.HttpListener.AddAllPrefixes() at System.Net.HttpListener.Start() at Mendix.Modeler.WebEditors.WebServer.ModelerWebServer.Init() in C:\Users\Autobuild\workspace\AppStudio4.0-Build\modeler\Mendix.Modeler.WebEditors\WebServer\ModelerWebServer.cs:line 44 at Mendix.Modeler.Plugins.Gui.GuiPluginManager.Init() in C:\Users\Autobuild\workspace\AppStudio4.0-Build\modeler\Mendix.Modeler.Core\Plugins\Gui\GuiPluginManager.cs:line 29 at Mendix.Modeler.WindowsGui.MainForm..ctor(IModelerGui _modelerGui, IGuiPluginManager guiPluginManager, IModelerSettingsManager modelerSettingsManager, IDashboardManager dashboardManager, ISignInManager signInManager, IApplicationManager applicationManager, IUrlOpener urlOpener, IAppStoreDataManagerFactory appStoreDataManagerFactory, IAppStoreAppImporter appStoreAppImporter, IProjectExplorerManager projectExplorerManager, IOptionProvider optionProvider, IEnumerable`1 _toolWindowProviders, ISessionAnalyticsEventManager sessionAnalyticsEventManager, IAnalyticsEventManager analyticsEventManager, IStatusBarFactory statusBarFactory, IToolWindowControlFactory toolWindowControlFactory, IEditorTabClosingBehaviorFactory editorTabClosingBehaviorFactory, ISaveChangesDialogProvider saveChangesDialogProvider, IAppStoreAppImporterUI appStoreAppImporterUI) in C:\Users\Autobuild\workspace\AppStudio4.0-Build\modeler\Mendix.Modeler.WindowsGui\MainForm.cs:line 174 at lambda_method(Closure ) at SimpleInjector.Lifestyles.SingletonLifestyle.SingletonLifestyleRegistration`1.CreateInstance(Func`1 instanceCreator) at SimpleInjector.Lifestyles.SingletonLifestyle.SingletonLifestyleRegistration`1.CreateInstanceWithNullCheck() at SimpleInjector.Lifestyles.SingletonLifestyle.SingletonLifestyleRegistration`1.GetInterceptedInstance() at SimpleInjector.Lifestyles.SingletonLifestyle.SingletonLifestyleRegistration`1.BuildExpression() at SimpleInjector.InstanceProducer.BuildExpressionInternal() at System.Lazy`1.CreateValue() at System.Lazy`1.LazyInitValue() at SimpleInjector.InstanceProducer.BuildInstanceCreator() at SimpleInjector.InstanceProducer.BuildAndReplaceInstanceCreatorAndCreateFirstInstance() at SimpleInjector.InstanceProducer.GetInstance() --- End of inner exception stack trace --- at SimpleInjector.InstanceProducer.GetInstance() at SimpleInjector.Container.GetInstanceForRootType[TService]() at SimpleInjector.Container.GetInstance[TService]() at Mendix.Modeler.WindowsGui.App.CreateMainForm() in C:\Users\Autobuild\workspace\AppStudio4.0-Build\modeler\Mendix.Modeler.WindowsGui\App.xaml.cs:line 102 Before upgrade to Windows 11 version 8.17.1 worked fine. Help would be appreciated to solve this. regards Peter