@FHollister I'm going to sound like I'm crazy, but after the test I did using the cable that was connected to the satellite directly to my PC, the Deco M5 satellite just started working full speed...

Chain: Modem --> Main Deco ---ethernet---> Satellite Deco Wifi Mode

My Deco M5 satellite cannot get past 90mbps using ethernet backhaul. My full speed is 500mbps and the app speed test shows even more, 750mbps generally. So I did a speed test recently and the speed...