diff --git a/packages/neon/neon/lib/l10n/en.arb b/packages/neon/neon/lib/l10n/en.arb
index a4dec86c..72d2862f 100644
--- a/packages/neon/neon/lib/l10n/en.arb
+++ b/packages/neon/neon/lib/l10n/en.arb
@@ -70,6 +70,14 @@
   "errorEmptyField": "This field can not be empty",
   "errorInvalidURL": "Invalid URL provided",
   "errorInvalidQrcode": "Invalid QR-Code provided",
+  "errorRouteNotFound": "Route not found: {route}",
+  "@errorRouteNotFound" : {
+    "placeholders": {
+      "route": {
+        "type": "String"
+      }
+    }
+  },
   "actionYes": "Yes",
   "actionNo": "No",
   "actionClose": "Close",
diff --git a/packages/neon/neon/lib/l10n/localizations.dart b/packages/neon/neon/lib/l10n/localizations.dart
index 609d5a97..79b78e87 100644
--- a/packages/neon/neon/lib/l10n/localizations.dart
+++ b/packages/neon/neon/lib/l10n/localizations.dart
@@ -269,6 +269,12 @@ abstract class AppLocalizations {
   /// **'Invalid QR-Code provided'**
   String get errorInvalidQrcode;
 
+  /// No description provided for @errorRouteNotFound.
+  ///
+  /// In en, this message translates to:
+  /// **'Route not found: {route}'**
+  String errorRouteNotFound(String route);
+
   /// No description provided for @actionYes.
   ///
   /// In en, this message translates to:
diff --git a/packages/neon/neon/lib/l10n/localizations_en.dart b/packages/neon/neon/lib/l10n/localizations_en.dart
index 73ff480e..32f6f603 100644
--- a/packages/neon/neon/lib/l10n/localizations_en.dart
+++ b/packages/neon/neon/lib/l10n/localizations_en.dart
@@ -123,6 +123,11 @@ class AppLocalizationsEn extends AppLocalizations {
   @override
   String get errorInvalidQrcode => 'Invalid QR-Code provided';
 
+  @override
+  String errorRouteNotFound(String route) {
+    return 'Route not found: $route';
+  }
+
   @override
   String get actionYes => 'Yes';
 
diff --git a/packages/neon/neon/lib/src/pages/route_not_found.dart b/packages/neon/neon/lib/src/pages/route_not_found.dart
new file mode 100644
index 00000000..884172f2
--- /dev/null
+++ b/packages/neon/neon/lib/src/pages/route_not_found.dart
@@ -0,0 +1,64 @@
+import 'dart:async';
+
+import 'package:flutter/material.dart';
+import 'package:neon/blocs.dart';
+import 'package:neon/l10n/localizations.dart';
+import 'package:neon/src/router.dart';
+import 'package:provider/provider.dart';
+import 'package:url_launcher/url_launcher.dart';
+
+class RouteNotFoundPage extends StatefulWidget {
+  const RouteNotFoundPage({
+    required this.uri,
+    super.key,
+  });
+
+  final Uri uri;
+
+  @override
+  State<RouteNotFoundPage> createState() => _RouteNotFoundPageState();
+}
+
+class _RouteNotFoundPageState extends State<RouteNotFoundPage> {
+  @override
+  void initState() {
+    super.initState();
+
+    unawaited(_checkLaunchable());
+  }
+
+  Future _checkLaunchable() async {
+    final accountsBloc = Provider.of<AccountsBloc>(context, listen: false);
+    if (!accountsBloc.hasAccounts) {
+      return;
+    }
+
+    final activeAccount = accountsBloc.activeAccount.value!;
+
+    final launched = await launchUrl(
+      activeAccount.completeUri(widget.uri),
+      mode: LaunchMode.externalApplication,
+    );
+    if (!launched) {
+      return;
+    }
+
+    if (context.mounted) {
+      const HomeRoute().go(context);
+    }
+  }
+
+  @override
+  Widget build(final BuildContext context) => Scaffold(
+        appBar: AppBar(
+          leading: CloseButton(
+            onPressed: () {
+              const HomeRoute().go(context);
+            },
+          ),
+        ),
+        body: Center(
+          child: Text(AppLocalizations.of(context).errorRouteNotFound(widget.uri.toString())),
+        ),
+      );
+}
diff --git a/packages/neon/neon/lib/src/router.dart b/packages/neon/neon/lib/src/router.dart
index 8db0007f..a0af9af9 100644
--- a/packages/neon/neon/lib/src/router.dart
+++ b/packages/neon/neon/lib/src/router.dart
@@ -3,7 +3,7 @@
 import 'dart:async';
 
 import 'package:flutter/foundation.dart';
-import 'package:flutter/widgets.dart';
+import 'package:flutter/material.dart';
 import 'package:go_router/go_router.dart';
 import 'package:meta/meta.dart';
 import 'package:neon/src/blocs/accounts.dart';
@@ -17,6 +17,7 @@ import 'package:neon/src/pages/login_check_server_status.dart';
 import 'package:neon/src/pages/login_flow.dart';
 import 'package:neon/src/pages/login_qrcode.dart';
 import 'package:neon/src/pages/nextcloud_app_settings.dart';
+import 'package:neon/src/pages/route_not_found.dart';
 import 'package:neon/src/pages/settings.dart';
 import 'package:neon/src/utils/stream_listenable.dart';
 import 'package:provider/provider.dart';
@@ -33,6 +34,7 @@ class AppRouter extends GoRouter {
           refreshListenable: StreamListenable(accountsBloc.activeAccount),
           navigatorKey: navigatorKey,
           initialLocation: const HomeRoute().location,
+          errorPageBuilder: _buildErrorPage,
           redirect: (final context, final state) {
             final loginQrcode = LoginQrcode.tryParse(state.uri.toString());
             if (loginQrcode != null) {
@@ -43,6 +45,13 @@ class AppRouter extends GoRouter {
               ).location;
             }
 
+            if (accountsBloc.hasAccounts && state.uri.hasScheme) {
+              final strippedUri = accountsBloc.activeAccount.value!.stripUri(state.uri);
+              if (strippedUri != state.uri) {
+                return strippedUri.toString();
+              }
+            }
+
             // redirect to loginscreen when no account is logged in
             if (!accountsBloc.hasAccounts && !state.uri.toString().startsWith(const LoginRoute().location)) {
               return const LoginRoute().location;
@@ -52,6 +61,12 @@ class AppRouter extends GoRouter {
           },
           routes: $appRoutes,
         );
+
+  static Page _buildErrorPage(final BuildContext context, final GoRouterState state) => MaterialPage(
+        child: RouteNotFoundPage(
+          uri: state.uri,
+        ),
+      );
 }
 
 @immutable