diff --git a/front001/mosenioring/lib/src/features/telemetry/presentation/telemetry_controller.dart b/front001/mosenioring/lib/src/features/telemetry/presentation/telemetry_controller.dart
index d011db4..eb2041a 100644
--- a/front001/mosenioring/lib/src/features/telemetry/presentation/telemetry_controller.dart
+++ b/front001/mosenioring/lib/src/features/telemetry/presentation/telemetry_controller.dart
@@ -32,11 +32,16 @@ class TelemetryController extends Notifier<TelemetryState> {
         errorMessage: null,
       );
     } on TelemetryFailure catch (failure) {
+      if (failure.type == TelemetryFailureType.unauthorized) {
+        await ref.read(authControllerProvider.notifier).logout();
+      }
       _logFailure(failure);
       state = state.copyWith(
         isLoading: false,
         lastOutcome: TelemetryOutcome.failure,
-        errorMessage: failure.message,
+        errorMessage: failure.type == TelemetryFailureType.unauthorized
+            ? 'Session expired. Please sign in again.'
+            : failure.message,
       );
     } catch (error) {
       _logFailure(error);