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QNAP TS-421 TurboNAS QTS Firmware Download

Posted at March 4, 2024 by PCI-DB Team

Install Driver Automatically
Device NameQNAP TS-421 TurboNAS QTS Firmware
CategoryHdd Ssd Nas Usb Flash
File Size164.2 MB
Supported OSOS Independent

QNAP TS-421 TurboNAS QTS Firmware Description

Bug Fixes:

- Fails to list files in File Station.
- Fixed potential CGI vulnerabilities. Users are advised to upgrade their NAS firmware with this release.
- Fixed Change Password vulnerability.
- Fixed Apple Networking vulnerability.
- Fixed multiple OpenSSH vulnerabilities (CVE-2015-5600 and other three).
- An Out-of-Memory message will appear in the system logs and call a trace error in the kernel log when cloning a VM via iSCSI (from a file-based thick LUN to itself).
- When the number of LUNs exceed 70, it may take a long time to display information on the overview page.
- The NAS will be unstable if enabling the domain controller and changing Windows ACL permissions.
- TS-x31 series models will sometimes fail to find an attached Netis WF2110.
- Shared folders could not be downloaded by share link in File Station if they are password protected with a password over 6 characters in length.
- Backing up files over 40GB to QTS 4.1.4 via FTP causes data inconsistency.
- FileZilla will show error logs when transferring 24GB of data to the NAS with SSL/TLS.
- Missing port number on share link in Qvideo for Windows Phone.
- Shows proftpd segfault message when executing the SSH command: /etc/init.d/nvrd.sh restart.
- TVS-ECx80U-RP series models cannot have jumbo frames set to 9000.
- The NAS still shows the "QTS Beta test program" window.
- Performance will be affected when copying big files to a block-based thick LUN with 4K byte sector size via 10GbE (iSCSI).
- A volume created in QTS 4.1.x cannot be removed in QTS 4.2.0.
- Storage iostat write problem in Veeam Backup.
- If you check then uncheck the SMB Encryption option in shared folders, the option will still be checked.
- Streaming images from the TS-269H to Chromecast using File Station will fail to show the image.
- A fixed IP will not be set after pushing the Reset button for three seconds.


- We recommend that you upgrade the built-in PHP by downloading the PHP app 5.5.27 (or newer) from the App Center to address multiple vulnerabilities. Please follow the automatic notifications to ensure your PHP is always current.To ensure reliability, users should check for compatibility before upgrading.
- We recommend that you upgrade the built-in MySQL by downloading the QMariaDB app 5.5.44 (or newer) from the App Center to address multiple vulnerabilities. Please follow the automatic notifications to ensure your QMariaDB is always current. To ensure reliability, users should check for compatibility before upgrading.

About Network-Attached Storage Updates:

Upgrading the Network-Attached Storage (NAS) firmware can improve the system’s overall performance, stability, and security by adding various fixes for related issues, enhancing existing features (or adding support for new ones), or updating different applications.

Due to the high number of NAS manufacturers, as well as network storage types, installing a new firmware might not be always as easy as it appears – and not too safe either. Failing to perform a software update can cause serious malfunctions to the network storage.

So, before you even consider applying this release, carefully read the installation guide and initiate the process only when you have understood and completely familiarized yourself with all the steps.

Moreover, it would be best if you take into account using a UPS unit (Uninterruptible Power Supply) to perform this task, because no power disruption should affect the upgrade.

With all these aspects in mind, after you have read the installation guide, click the download button to apply this firmware version to your NAS. Remember to check back with our website in order to stay up to speed with the latest releases.

  It is highly recommended to always use the most recent driver version available.

Try to set a system restore point before installing a device driver. This will help if you installed an incorrect or mismatched driver. Problems can arise when your hardware device is too old or not supported any longer.

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