Having Case 2 of https://www.tp-link.com/in/support/faq/2237/ . ISP not at fault because when I am connecting the cable directly to my PC, it works fine with no network drop. Currently having a PPPoE

Model : Hardware Version : Firmware Version : ISP : hey there :) since about 3-4months i am owner of a " [COLOR=#000000]AC750 Wireless Dual Band Gigabit Router" or "archer C2" no idea tbh, just copyin