I live in zip code 75002. After changing our data plan to unlimited, the signal strength within a 1/4 mile of our home has decreased significantly. Before upgrading, our data speeds ranged from 15-100mbps, now we are lucky to get 3mbps.
I drove around my city yesterday and on occasion I would get 3 bars of signal on my device and 10/1 mbps (UP/DOWN). Testing bandwidth and confirming slightly better signal strength, I moved the car 20ft and I went to 1 or no bars, and couldn't even run a speed test. Happens over and over again except when am near home then my every device on my account is a useless brick without wifi.