Use a wired Ethernet cable between your PC and the router. Do not attempt a manual firmware upgrade over Wi-Fi, as a signal drop can corrupt the installation. Step-by-Step Firmware Download & Installation 1. Locate and Download the Firmware

Click . A confirmation pop-up will appear; click Yes .

The firmware updates for the TL-WR850N V3, particularly those released in 2021 and beyond, focus on: Download for TL-WR850N | TP-Link India