Another way you can lose connectivity is going into an area that has too many people. I went to Madras, Oregon to view the 2017 total solar eclipse.
Madras is a small town of about 7 000 people, in a county of about 25 000 people. Estimates are that around 100 000 people came there for the eclipse. The cellular infrastructure there was not able to handle the volume.
For the ~28 hours I was there, I was never once able to view a web page via cellular internet. I and a friend who also picked Madras to watch from tried to call each other a few times, and never got through. Most text messages we tried to exchange were lost, although we did each manage to get a couple through, although those came through hours after they were sent.
We both had T-Mobile. I don't know how AT&T, Sprint, and Verizon were doing.
Madras is a small town of about 7 000 people, in a county of about 25 000 people. Estimates are that around 100 000 people came there for the eclipse. The cellular infrastructure there was not able to handle the volume.
For the ~28 hours I was there, I was never once able to view a web page via cellular internet. I and a friend who also picked Madras to watch from tried to call each other a few times, and never got through. Most text messages we tried to exchange were lost, although we did each manage to get a couple through, although those came through hours after they were sent.
We both had T-Mobile. I don't know how AT&T, Sprint, and Verizon were doing.