---
title: Trusted Mobile app troubleshooting
description: Review these troubleshooting scenarios to resolve issues with Trusted Mobile app.
locale: en-US
canonical_url: https://www.servicenow.com/docs/r/australia/platform-security/authentication/troubleshooting-trusted-device.html
release: australia
product: Authentication
classification: authentication
topic_type: concept
last_updated: "2026-03-12"
reading_time_minutes: 1
breadcrumb: [Adaptive authentication for Trusted Mobile apps, Adaptive authentication, Authentication, Access Management]
---

# Trusted Mobile app troubleshooting

Review these troubleshooting scenarios to resolve issues with Trusted Mobile app.

The following sections describe some troubleshooting scenarios and ways to troubleshoot.

## Time difference between instance and mobile \(clock-skew\)

If there is a clock-skew, you can adjust or reset the clock on your mobile device for using the Trusted device.

## QR code expiry within five minutes

The QR code for Trusted device feature expires within five minutes. In such a case, you can click for a new QR code.

**Note:** The QR code expiry can be extended. To extend the code expiry, contact your admin.

## System property has changed

If the system property has changed, verify the registration based on the system property for the valid credential that can be used for login.

## Maximum device registered

If the maximum number of device registrations is reached, remove the existing device or contact your admin to change the maximum device count.