Ravi Prakash, professor of computer sciences at University of Texas at Dallas, has a theory that could explain the cause of the nationwide outage.
AT&T announced its wireless service was restored about 12 hours after an outage across the Dallas-based company's cell phone network.Cell phone customers had their connected world stop at about 2 a.m., when people in North Texas began having phone problems.The Dallas area was one of the hardest hit in the country, but outages were reported nationwide, including in Houston, Los Angeles, Chicago and Atlanta.
They were all showing my correct location and the correct location of my family, so I know that that service was working even though all of them were connected over Wi-Fi," said Prakash.That leaves the third leg: the connection between your phone and the tower.That's where he thinks the problem occurred."If that trust and identification doesn't work, then my phone is going to tell me that I can't find service," said Prakash.
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