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 request 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.
--- 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: "2026-09-10" 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 request 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.
| 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 | 2026-09-10 |
| reading_time_minutes | 1 |
| breadcrumb | Adaptive authentication for Trusted mobile appsAdaptive authenticationAuthenticationAccess Management |