Ledsteplin
Ambassador
Well I am using three Unlocked T-Mobile phones on AT&T and this sort of proves my Theory unless Ookla is somehow blocking it but I was thinking someone at AT&T was pissed as I am sure a majority of the Grandfathered plans from people complaining about their speeds used the Ookla App to monitor their throttling...
What was your theory? Reading these comments, I don't see a pattern or theory. Some work on AT&T and some don't.