Yes, it is possible to downgrade (go back to a previous version) of the RouterOS operating system on MikroTik computers.

This may be necessary for a variety of reasons, such as compatibility issues, stability with the most recent version, or simply personal preference.

Below, we explain how to downgrade safely and effectively:

Steps to Downgrade RouterOS

1. Preparation:
   • Backup copy: Before starting the downgrade process, it is essential to make a complete backup of the current configuration. This will allow you to restore the configuration if something goes wrong during the downgrade process.
   • Download the Desired Version: Visit the official MikroTik website to download the specific version of RouterOS you want to install. Make sure you select the appropriate version for the specific model of your MikroTik device.
2. Equipment Access:
   • Connect to your MikroTik device using WinBox, WebFig, or SSH, depending on your preference.
3. Upload the Operating System File:
   • In WinBox or WebFig, go to “Files” and upload the RouterOS file (with extension .npk) that you downloaded. Make sure the file is correct for your device's hardware.
4. Reboot in Safe Mode (optional but recommended):
   • Before proceeding with the installation, you can restart the device in safe mode to avoid interruptions during the process. This is done from WinBox or through the command /system reboot In the terminal.
5. Installation:
   • After uploading the file, go to “System” -> “Packages”, where you can manage the installed packages.
   • From this interface, select the package you just uploaded and perform the installation. The system will ask you to restart to apply changes.
6. Reboot and Verification:
   • Reboot the device to complete the downgrade installation.
   • Once the device reboots, check the RouterOS version using WinBox, WebFig, or with the command /system resource print In the terminal.

Important considerations

• Configuration Compatibility: Some configurations are not backward compatible. Verify that your current configuration is compatible with the previous version of RouterOS you are downgrading to.
• Licensing: Make sure the licensing features in the older version are appropriate for your needs, as some features may be limited or unavailable in older versions.

By following these steps, you can safely and effectively downgrade the operating system of your MikroTik device, ensuring you maintain the stability and functionality of your network.