@KT959 

Hi，

Here are some suggestions if you fail to update the firmware on the Tapo smart devices.
    1. Restart Devices: Power cycle your router and the smart device.
    2. Check Network Connection: Move the device closer to the router for a better connection. See this FAQ for optimization tips: How to Check and Fix an Unstable Tapo or Kasa Network Connection
    3. Try to disable the firewall, antivirus, and ad-blocker settings on the router.
    4. Use Mobile Hotspot: If needed, connect the device to your phone's hotspot and try the upgrade again.

Please refer to this link for more details: What can I do if Tapo/Kasa Smart Devices fail to update the firmware?

If the problem persists, contact our customer service team and provide the results of the above troubleshooting steps.