TP-Link Router Firmware Update Guide: TL-WR840N Keeping your TP-Link TL-WR840N router updated is the simplest way to ensure your home network remains fast, stable, and secure 1.5.10 . Firmware acts as the "brain" of your router; regular updates patch security vulnerabilities, fix annoying connection drops, and can even introduce new features like support for the TP-Link Tether app 1.5.8, 1.5.9 .

Check Hardware Version: Firmware is hardware-specific. Look at the sticker on the bottom of your router for the Hardware Version (e.g., Ver: 6.0). You must download firmware that matches this version exactly.

Step 4: Backup Current Settings

Conclusion

Better Performance: New versions often optimize how the router handles multiple devices, leading to faster and more stable internet speeds.

Step 3: Perform the Firmware Update

  1. Disconnect all other devices from the router (optional but safer).
  2. Log into the router’s web interface again.
  3. Go to System Tools → Firmware Upgrade.
  4. Click Browse (or Choose File) and select the extracted firmware file.
  5. Click Upgrade.
  6. Wait 2–3 minutes. The router will reboot automatically. Do not unplug or refresh the page.

Alternatively, go to Advanced > System Tools > Firmware Upgrade.

Use a Wired Connection: It is strongly recommended to connect your computer to the router using an Ethernet cable. Updating over Wi-Fi can lead to failure if the signal drops.