A couple of people trying to sell us AT&T's internet service door-to-door had a very interesting trick up their sleeve. They had me run a speed test on my current service while standing on our front porch. That resulted in a download speed of 61.4 Mbps, as shown in the lefthand screenshot below. That makes it look like I'm not getting anywhere near the 300 Mbps I should be getting, but that's the trick. Standing outside not only put me further from my Wifi router, but that signal now had to penetrate a brick wall to reach my smartphone. Which of course they knew.
Being the techie type (it was my job for 40 years), I reran the test by walking five steps to the living room and reran the test, resulting in the 342 Mbps as shown in the righthand screenshot below. That seemingly small difference in location made a huge difference and I was clearly getting great Internet speed. But to really measure Internet speed, I knew I had to take WiFi out of the equation, so I ran a speed test from my MacMini, which is Ethernet-cabled to the cable modem. That resulted in a stunning 483 Mbps.
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