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AT&T Blames Recent iPhone Upload Speed Issues on Software Defect, Fix Under Development

Yesterday, we reported that a number of iPhone 4 users around the United States have been experiencing severely crippled upload speeds on AT&T's 3G network since the holiday weekend.

At the time it was unclear whether the issue, which limited upload speeds in many markets to 100 kbps, was an intentional cap placed by AT&T or if there was some sort of network issue or maintenance operation causing the slowdown. AT&T has finally responded with an official statement acknowledging that the slowdown is due to a software defect in Alcatel-Lucent equipment affecting users in certain markets under certain conditions.

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.

There is no word on a timeframe for deployment of the software fix for Alcatel-Lucent's equipment.

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25 months ago
Really AT&T?
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25 months ago
Very interesting - it's EXTREMELY rare for a manufacturer to be called out like this. Things are likely not all smiles and giggles between ALU and AT&T right now.
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25 months ago
Like I said, it was a fluke. A soft/hard fluke.
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25 months ago
Triggered under certain conditions, huh. AKA "usage"?
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25 months ago
Edit!!!

.. Sorry misunderstood the article .. So I stand corrected.. Flame suit on lol..
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25 months ago
wow i would expect more of at&t:apple:
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25 months ago
I only get around 38 kbps upload speeds, so I'm beyond all hope and basically don't really care anymore.
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25 months ago

Like I said, it was a fluke.


Hardly a fluke.

This is and was a major issue for them (both ALU and ATT) which resulted in upload speeds being capped to very low speeds and caused a lot of people to be POed big time.

Hardly a fluke.
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25 months ago

isnt this the same junk that apple said would fix the reception issue.. and now att is blaiming apple also and they both hope that a software update is going to fix everything when both the iphone and att have crappy reception? :p


No, different issue, different signature, different fix.
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25 months ago

Hardly a fluke.

This is and was a major issue for them (both ALU and ATT) which resulted in upload speeds being capped to very low speeds and caused a lot of people to be POed big time.

Hardly a fluke.


Fluke is what I call it because it's not something they intentionally wanted. However, it is true this ain't no fluke, but a severe server problem.

Something I predicted on the iPhone forums when people thought it was AT&T throttling.
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