What do I do when the message "The app digital signature has expired" is displayed on an app in the App Center?
Last modified date:
2023-01-03
Applicable Products
- QTS 4.5.0 and later versions
- QTS hero h4.5.0 and later versions
Root Cause
The message "The app digital signature has expired" means that the mentioned application is too old and requires a renewal by updating the application to the latest version.
QNAP uses digital signatures to validate apps created by QNAP or QNAP-trusted publishers. The use of digital signatures prevents the unauthorized tampering of apps that may lead to security risks. If you still see the message after updating to the latest version, this could indicate one of the following situations:
- The application has reached its end of support. In this case, we recommend removing the application if it is not essential to your NAS use.
- The application has not applied a newer digital signature. Contact QNAP support and report this problem.
Note
Existing services of applications will not be affected even if the digital signature has expired.
Solution
Follow the steps below:
- Log in to QTS/QuTS hero as an administrator.
- Go to App Center.
- Locate the app and click the app Icon. The app detail window opens.
- Click Digital Signature to open the Digital Signature Details window.
- Find Issued by.
- If the app is issued by QNAP:
- Click Update to update the app.
- If you cannot find the Update button, upgrade QTS/QuTS hero to the latest version.
- Contact QNAP support if you still see the message after upgrading QTS/QuTS hero.
- If the app is issued by a third party:
- Update the QTS/QuTS hero firmware. Third party digital signatures are only supported after QTS/QuTS hero 5.0.1 or later versions.
- Contact QNAP support if you still see the message after upgrading QTS/QuTS hero.
- If the app is issued by QNAP:
Note
Apps without Update or Remove buttons are built-in system applications. Updating the apps require upgrading the QTS/QuTS hero firmware.
