Hi everyone, I'm facing a frustrating issue with my home network setup and could use some advice. I have two TP-Link Archer C6 routers: one on the second floor and another on the third floor. My internet plan provides 100 Mbps, and when I connect my PC on the third floor directly to the second-floor router via an Ethernet cable, I get the full 100 Mbps speed. However, when I introduce the third-floor router which runs on AP MODE into the setup (connecting the second-floor router to the third-floor router via Ethernet, then the PC to the third-floor router), my speed drops to just 3 Mbps.