TP-Link TL-WR850N V3 is a high-speed N300 wireless router specifically designed for ISP (Internet Service Provider) deployments in India. It features Aginet Config

Standard firmware files ignore the hardware revision inside the Indian V3 units (which sometimes have slightly different RAM/Flash chips). Flashing the global version often results in a boot loop where the Power LED and WAN LED flash forever.

TL-WR850N_V3_160407.zip or later (look for build dates after 2016).