What details have to be filled. I am not a tech geek. Need some explanation for the fields to be filled. Thank you

Region : India Model : TD-8817 Hardware Version : V7 Firmware Version : 3.18.1.0_TC3087 ISP : Bharti Airtel Limited Hi Guys, I recently bought a TP-Link TD-8817 ADSL2 + Modem Router. I play online...