diff --git a/lib/client/base_app_client.dart b/lib/client/base_app_client.dart
index 10181bf4..b1785b0e 100644
--- a/lib/client/base_app_client.dart
+++ b/lib/client/base_app_client.dart
@@ -3,6 +3,7 @@ import 'dart:io' show Platform;
 
 import 'package:doctor_app_flutter/config/config.dart';
 import 'package:doctor_app_flutter/config/shared_pref_kay.dart';
+import 'package:doctor_app_flutter/core/service/NavigationService.dart';
 import 'package:doctor_app_flutter/core/viewModel/authentication_view_model.dart';
 import 'package:doctor_app_flutter/models/doctor/doctor_profile_model.dart';
 import 'package:doctor_app_flutter/models/patient/patiant_info_model.dart';
@@ -12,6 +13,9 @@ import 'package:flutter/cupertino.dart';
 import 'package:http/http.dart' as http;
 import 'package:provider/provider.dart';
 
+import '../locator.dart';
+import '../routes.dart';
+
 DrAppSharedPreferances sharedPref = new DrAppSharedPreferances();
 Helpers helpers = new Helpers();
 
@@ -116,7 +120,9 @@ class BaseAppClient {
               await Provider.of<AuthenticationViewModel>(AppGlobal.CONTEX,
                       listen: false)
                   .logout();
+
               Helpers.showErrorToast('Your session expired Please login again');
+              locator<NavigationService>().pushNamedAndRemoveUntil(ROOT);
             }
             if (isAllowAny) {
               onFailure(getError(parsed), statusCode);
diff --git a/lib/core/service/NavigationService.dart b/lib/core/service/NavigationService.dart
new file mode 100644
index 00000000..426ace4d
--- /dev/null
+++ b/lib/core/service/NavigationService.dart
@@ -0,0 +1,12 @@
+import 'package:flutter/material.dart';
+
+class NavigationService {
+  final GlobalKey<NavigatorState> navigatorKey =
+  new GlobalKey<NavigatorState>();
+  Future<dynamic> navigateTo(String routeName) {
+    return navigatorKey.currentState.pushNamed(routeName);
+  }
+  Future<dynamic> pushNamedAndRemoveUntil(String routeName) {
+    return navigatorKey.currentState.pushNamedAndRemoveUntil(routeName,(asd)=>false);
+  }
+}
\ No newline at end of file
diff --git a/lib/locator.dart b/lib/locator.dart
index 66ec9161..6147b114 100644
--- a/lib/locator.dart
+++ b/lib/locator.dart
@@ -8,35 +8,36 @@ import 'package:doctor_app_flutter/core/viewModel/procedure_View_model.dart';
 import 'package:doctor_app_flutter/core/viewModel/sick_leave_view_model.dart';
 import 'package:get_it/get_it.dart';
 
+import 'core/service/NavigationService.dart';
 import 'core/service/home/dasboard_service.dart';
+import 'core/service/home/doctor_reply_service.dart';
+import 'core/service/home/schedule_service.dart';
+import 'core/service/hospitals/hospitals_service.dart';
 import 'core/service/patient/DischargedPatientService.dart';
 import 'core/service/patient/LiveCarePatientServices.dart';
-import 'core/service/patient/patient_service.dart';
-import 'core/service/patient_medical_file/insurance/InsuranceCardService.dart';
 import 'core/service/patient/MyReferralPatientService.dart';
 import 'core/service/patient/PatientMuseService.dart';
 import 'core/service/patient/ReferralService.dart';
+import 'core/service/patient/out_patient_service.dart';
+import 'core/service/patient/patient-doctor-referral-service.dart';
+import 'core/service/patient/patientInPatientService.dart';
+import 'core/service/patient/patient_service.dart';
+import 'core/service/patient/referral_patient_service.dart';
+import 'core/service/patient/referred_patient_service.dart';
+import 'core/service/patient_medical_file/admission_request/patient-admission-request-service.dart';
+import 'core/service/patient_medical_file/insurance/InsuranceCardService.dart';
+import 'core/service/patient_medical_file/lab_order/labs_service.dart';
 import 'core/service/patient_medical_file/medical_report/PatientMedicalReportService.dart';
 import 'core/service/patient_medical_file/medical_report/medical_file_service.dart';
+import 'core/service/patient_medical_file/prescription/medicine_service.dart';
 import 'core/service/patient_medical_file/prescription/prescription_service.dart';
+import 'core/service/patient_medical_file/prescription/prescriptions_service.dart';
 import 'core/service/patient_medical_file/procedure/procedure_service.dart';
+import 'core/service/patient_medical_file/radiology/radiology_service.dart';
 import 'core/service/patient_medical_file/sick_leave/sickleave_service.dart';
 import 'core/service/patient_medical_file/soap/SOAP_service.dart';
-import 'core/service/home/doctor_reply_service.dart';
-import 'core/service/hospitals/hospitals_service.dart';
-import 'core/service/patient_medical_file/lab_order/labs_service.dart';
-import 'core/service/patient_medical_file/prescription/medicine_service.dart';
-import 'core/service/patient_medical_file/admission_request/patient-admission-request-service.dart';
-import 'core/service/patient/patient-doctor-referral-service.dart';
 import 'core/service/patient_medical_file/ucaf/patient-ucaf-service.dart';
 import 'core/service/patient_medical_file/vital_sign/patient-vital-signs-service.dart';
-import 'core/service/patient/out_patient_service.dart';
-import 'core/service/patient/patientInPatientService.dart';
-import 'core/service/patient_medical_file/prescription/prescriptions_service.dart';
-import 'core/service/patient_medical_file/radiology/radiology_service.dart';
-import 'core/service/patient/referral_patient_service.dart';
-import 'core/service/patient/referred_patient_service.dart';
-import 'core/service/home/schedule_service.dart';
 import 'core/viewModel/DischargedPatientViewModel.dart';
 import 'core/viewModel/InsuranceViewModel.dart';
 import 'core/viewModel/LiveCarePatientViewModel.dart';
@@ -92,6 +93,7 @@ void setupLocator() {
   locator.registerLazySingleton(() => HospitalsService());
   locator.registerLazySingleton(() => PatientMedicalReportService());
   locator.registerLazySingleton(() => LiveCarePatientServices());
+  locator.registerLazySingleton(() => NavigationService());
 
   /// View Model
   locator.registerFactory(() => DoctorReplayViewModel());
diff --git a/lib/main.dart b/lib/main.dart
index a95378e5..c29429b0 100644
--- a/lib/main.dart
+++ b/lib/main.dart
@@ -11,6 +11,7 @@ import 'package:provider/provider.dart';
 import './config/size_config.dart';
 import './routes.dart';
 import 'config/config.dart';
+import 'core/service/NavigationService.dart';
 import 'core/viewModel/authentication_view_model.dart';
 import 'locator.dart';
 
@@ -66,6 +67,7 @@ class MyApp extends StatelessWidget {
                         dividerColor: Colors.grey[350],
                         backgroundColor: Color.fromRGBO(255, 255, 255, 1),
                       ),
+                  navigatorKey: locator<NavigationService>().navigatorKey,
                       initialRoute: INIT_ROUTE,
                       routes: routes,
                       debugShowCheckedModeBanner: false,