AT&T attributes crippled upload speeds to newly discovered software flaw

Thu, Jul 8, 2010


Recently we noted that a number of iPhone 4 users have seen their upload speeds fall all the way down to 100 kbps. At first, some speculated that AT&T was up to its old tricks while others assumed that the problem, which began to take shape over the weekend, was merely the result of increased data usage over the holiday weekend.

Addressing the issue, AT&T announced yesterday that the problem is a newly identified software flaw in some of Alcatel-Lucent’s equipment. Alacatel-Lucent is currently working to remedy the situation, but there’s no timeline for when things might be back to normal.

AT&T’s official statement on the matter reads:

AT&T and Alcatel-Lucent jointly identified a software defect–triggered under certain conditions–that impacted uplink performance for Laptop Connect and smartphone customers using 3G HSUPA-capable wireless devices in markets with Alcatel-Lucent equipment. This impacts less than two percent of our wireless customer base. While Alcatel-Lucent develops the appropriate software fix, we are providing normal 3G uplink speeds and consistent performance for affected customers with HSUPA-capable devices.

via All Things D


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