Firmware for v5 will NOT work on v6 or v8. Always match the version.
It is critical to match the firmware to your hardware version to avoid permanently damaging the device. www.tp-link.com Check the Label tp+link+router+firmware+update+tlwr840n+best
To ensure a smooth and successful firmware update: Firmware for v5 will NOT work on v6 or v8
: Go to System Tools > Backup & Restore first. tp+link+router+firmware+update+tlwr840n+best
To get the best performance out of your TP-Link TL-WR840N Go to product viewer dialog for this item.