I cannot for the life of me understand what is wrong.
My other computers and Xbox that are connected through ethernet on a second router with CAT6 cables are also getting in this 200-300 down range. My desktop that is connected directly with a CAT6 ethernet cable to the router is only getting 300 down (tested on ). But when I try speedtests on my computers, the download speeds are nothing close. When I log into 192.168.1.1 and do the built in speed test on the TP-Link router page, I see speeds about what I should be getting (800+ down, 20+ up). I have the Xfinity XB6 gateway in bridge mode, connected to my TP-Link AX3000 router. My download speeds I pay for from Comcast is 900 Mbps, upload is 25 Mbps. I have Xfinity Internet and a TP-Link Router. I usually can figure this kind of stuff out but I'm currently at a loss.