My son has a Win10 gaming desktop computer and I run Linux Mint 19.3 on my own desktop. Both are on the same home WIFI network. My ISP furnishes a nominal 40Mbps down cable internet service. When Ookla speed test is run on the Win10 (Chrome) the result is 3-4Mbps down. Same test on my Linux box (Chromium and Firefox) yields 35-39Mbps. To troubleshoot, I booted my Linux 19.3 live USB onto the Win10 computer, loaded Chromium and ran Ookla. Result was the same 35-39Mbps I got on my computer. This seems to let out hardware as a cause. The speed tests were both done after a reboot with nothing else running. Any thoughts?