See: https://paulstamatiou.com/review-att-3g-microcell https://paulstamatiou.com/review-att-3g-microcell "After giving the MicroCell some power and ethernet,

See: https://paulstamatiou.com/review-att-3g-microcell https://paulstamatiou.com/review-att-3g-microcell "After giving the MicroCell some power and ethernet, it will start blinking the 3G and GPS LEDs. Wait, what.. GPS? Yep. To limit the MicroCell from working outside of test markets (or out of the country too), it must get a GPS lock on your location. AT&T suggests this should take no longer than 90 minutes. It took me about 5 hours." And this was the fundamental problem: there was absolutely no way to know if progress was being made or if it was going to run forever. It was literally a real-world Halting Problem.