Archive for the ‘network problems’ category

iPhone 3GS on iOS 4 with AT&T unlimited data plan, experiencing loss of data?

June 22nd, 2010

iOS 4 device compatibility

Just heard from one of the folks we know who updated his iPhone 3GS to iOS 4 yesterday only to lose his AT&T data connection completely. Today, when he could no longer even place calls, he contacted AT&T who, after several escalations, informed him there are isolated incidents of iPhone 3GS on iOS 4 with unlimited data plans no longer being able to connect to the network.

They told him they’re working with Apple to fix it, and put him name on a contact list so they could let him know when it was resolved.

Our question is — how isolated is isolated? How’s your AT&T unlimited data post iOS 4 update?

iPhone 3GS on iOS 4 with AT&T unlimited data plan, experiencing loss of data? is a story by TiPb. This feed is sponsored by The iPhone Blog Store.

TiPb - The #1 iPhone, iPad, and iPod touch Blog


iPad not properly renewing DHCP lease, causing problems for Princeton IT

April 20th, 2010

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Princeton University IT, which keeps a close eye on their infrastructure, claims the iPad is not being a good network citizen:

The malfunction we see is that the iPad uses DHCP to obtain a lease, renews the lease zero or more times (as expected), but then continues using the IP address without renewing the lease further. The iPad allows the DHCP lease to expire, but it continues using the IP address after allowing the lease to expire. The incident continues for some time (typically hours); usually it ends when the iPad asks for a new DHCP lease, or the iPad disconnects from the network.

Princeton says they’re communicating with Apple to resolve the issue, but in the meantime they — and other large institutions — are keeping the misbehaving iPads off their network.

This won’t be an issue for a home user or anyone on a small network where IP conflicts are unlikely, but it’s something Apple will need to fix in the near future, especially for the education market for which the iPad is so well suited.

Have you noticed any iPad problems on your network? Let us know in the comments!

[Thanks to everyone who sent this in!]

iPad not properly renewing DHCP lease, causing problems for Princeton IT is a story by TiPb. This feed is sponsored by The iPhone Blog Store.

TiPb - The #1 iPhone, iPad, and iPod touch Blog


AT&T working their assets off in advance of Verizon iPhone?

March 31st, 2010

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The Wall Street Journal, which kicked up the old iPhone on Verizon rumors (and iPhone HD!) again this week, now says AT&T doing everything they can to fix their network and optimize their service before any customers even think of jumping to Big Red.

First, they’ve very publicly acknowledged problems in cities like New York and San Francisco and invested in infrastructure to get them up to speed (and to stop the drop). In total, $2 billion will be spent building out the network.

However, dealing with the sheer volume of iPhone users on AT&T is an unparalleled problem, they maintain (and one many suspect would have plagued any single carrier).

For example, AT&T said when iPhone customers started checking their email and surfing the Web from their high-rise offices, AT&T repositioned its cellular antennas to point up, instead of down. Rivals will start the process of making the same changes only after the phones hit their networks, it said.

AT&T also spent a lot of time with Apple trying to fine-tune how the iPhone dealt with their network, and give the Cupertino engineers a crash course on wireless. They returned regularly and, according to the WSJ, helped with new technologies to “lighten the load”.

Apple rejiggered how its phones communicate with AT&T’s towers. As a result, the phones now put less of a load on the network for such simple tasks as finding the closest tower or checking for available text messages.

It’s an interesting, if decidedly pro-AT&T article but well worth the read. If you’re on AT&T, are you seeing actual, real world improvements? Would you jump on (or jump to) a Verizon iPhone if one is ever released?

AT&T working their assets off in advance of Verizon iPhone? is a story by TiPb. This feed is sponsored by The iPhone Blog Store.

TiPb - The #1 iPhone, iPad, and iPod touch Blog


O2 Admitting to iPhone Data Strain on Network

December 29th, 2009

antenna_pointingtoward_pokhara

The UK’s leading provider of mobile phones, O2, is openly admitting to having iPhone related network issues. It seems AT&T might not be alone after all, as O2 chief executive Ronan Dunne recently let out the secret that the last 6 months the iPhone had overwhelmed its network in London. Of course, O2 is claiming that the issues are all fixed and the network is as healthy as ever.

O2 iPhone owners have suffered through some of the same issues as some AT&T customers have experienced – dropped calls, data inconsistency, etc… So the big question is what has O2 done to solve the issue at hand? They’ve gone and spent a ton of money on the network to meet it’s demand including adding 200 additional mobile towers in the areas of need.

Any of our readers currently on the O2 network care to comment on your current service? Let us know in the comments below!

[Via 9to5Mac]

This is a story by the iPhone Blog. This feed is sponsored by The iPhone Blog Store.

O2 Admitting to iPhone Data Strain on Network


UPDATED: Are AT&T’s iPhone Problems Due to Network Configuration Errors?

December 24th, 2009

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UPDATE: TiPb asked for AT&T’s side of this story, and here it is:

“The AT&T wireless network is designed and engineered to deliver the highest possible levels of capacity and performance. Our standing as the nation’s fastest 3G network is validated by multiple third-party testing organizations on the basis of millions of drive tests annually.  

“We believe that recent online speculation regarding AT&T wireless network configuration settings is without foundation. Allegations in these posts regarding packet loss network settings are incorrect.”

ORIGINAL: In a post entitled Has AT&T Wireless data congestion been self-inflicted? the blog Communications explores whether the iPhone-on-AT&T problems we keep hearing about are the result of misconfigured buffers in AT&T’s mobile core network leading to congestion collapse.

It appears AT&T Wireless has configured their RNC buffers so there is no packet loss, i.e. with buffers capable of holding more than ten seconds of data. Zero packet loss may sound impressive to a telephone guy, but it causes TCP congestion collapse and thus doesn’t work for the mobile Internet!

The article is way over our heads, but give it a read and let us know your take-away. There’s obviously something going on that results in iPhone users on AT&T, especially in New York and San Francisco having connection issues, dropped calls, etc. Could this, at least in part, explain it?

This is a story by the iPhone Blog. This feed is sponsored by The iPhone Blog Store.

UPDATED: Are AT&T’s iPhone Problems Due to Network Configuration Errors?


SNL Weekend Update Roasts AT&T iPhone Network Problems

December 20th, 2009

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UPDATE: AT&T has contacted TiPb to say infrastructure spending is NOT the reason for iPhone connection problems.

ORIGINAL: Saturday Night Live’s Weekend Update sideswiped iPhone network problems last night, the latest in a series of mainstream reporting on the issue:

“It was reported this week that Google would soon launch its own cellphone as a challenge to the iPhone. Also a challenge to the iPhone? Making phone calls.”

Whether AT&T is to blame, or some combination of how AT&T’s network and the iPhone work together, we don’t know. While AT&T was content to increase data revenue while decreasing infrastructure investment all in the name of shareholder value, it’s perversely harder to ignore bad publicity than it is unhappy customers.

To quote Fake Steve, whose ill-conceived Operation Chokehold did succeed in bringing a lot of the current attention to bear:

AT&T, a huge wireless provider in the United States, cannot reliably connect calls in New York City. How can this be?

SNL video after the break!

[via Engadget]


[YouTube link]

This is a story by the iPhone Blog. This feed is sponsored by The iPhone Blog Store.

SNL Weekend Update Roasts AT&T iPhone Network Problems


Verizon Prepared to Handle iPhone in 2010 — If Exclusivity Ends with AT&T

December 18th, 2009

Could Verizon Handle the iPhone (Chart)

If Apple ends US iPhone exclusivity with AT&T in 2010, could Verizon handle the handset that currently crushes service in data-dense cities like San Francisco and New York? BusinessWeek scored the quote from Verizon Wireless Chief Technology Officer Anthony Melone:

“We have put things in place already. We are prepared to support that traffic.”

“It comes down to backing that process with money. We’ve been more consistent than any carrier in the last 10 years investing year over year.”

“We will handle it if we ever get it.”

To make sure we’re absolutely crystal clear, no one is saying Verizon will be getting the iPhone next year, Verizon is just claiming their network is up to the task if they do.

When reached for comment on that claim, AT&T wouldn’t address it directly but offered:

“We think we are leading the way in how people use their wireless phones. We operate a great network.”

This comes as AT&T is facing increased media (and satirical) attention over their lack of infrastructure investment despite the increase in data revenue the iPhone has brought them. To their credit, however, they are continuing to publicize the “improved wireless network experience” they have invested in for certain areas of the US.

[Thanks to the Reptile!]

This is a story by the iPhone Blog. This feed is sponsored by The iPhone Blog Store.

Verizon Prepared to Handle iPhone in 2010 — If Exclusivity Ends with AT&T


AT&T Has “Not Made Any Decision to Implement Tiered Pricing”

December 18th, 2009

AT&T Mobility CEO Ralph de la Vega has told the Wall Street Journal that despite what he said back in October and earlier in December:

“We have not made any decision to implement tiered pricing.”

Which is a weasel-wordy way of saying, contrary to previous statements that suggested they might do just that, AT&T isn’t planning on charging customers by the byte — yet. And they’re still going to call their plans “unlimited” even as they try to get customers to use less 3G data via:

  • More WiFi hotspots
  • Microcells (femtocells) which re-route connections through your own broadband cable or DSL modem, effectively creating a mini cell tower in your home.
  • Incentives (though de la Vega declined to comment on what those might be exactly)

Thanks in large part to the iPhone, AT&T data volumes have shot up 5000% and, according to a lot of recent blog-spun controversy, they’ve seen profits increase as well while simultaneously investing less and less in the network meant to support that usage.

This is a story by the iPhone Blog. This feed is sponsored by The iPhone Blog Store.

AT&T Has “Not Made Any Decision to Implement Tiered Pricing”


Are AT&T’s Problems Getting Lost in the Fake Steve Backtracks, Backtalks, and Crazy Backflips?

December 17th, 2009

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Fake Steve Jobs, the nom de guerre of Newsweek’s Dan Lyons, got a ton of attention for his Operation Chokehold campaign to effectively DDoS the AT&T data network, including from AT&T itself and the FCC, not to mention pretty much every commenter on the interwebs who, while they might have applauded the cause, didn’t much appreciate the method.

Along with a quick follow up conversation with Fake AT&T CEO Randall Stevenson, where Fake Steve again absolutely excoriates the iPhone’s lone US carrier for making billions in profit on iPhone data plans while apparently cutting investments in the very network infrastructure on which the iPhone is supposed to use that data, he first tried to back track a tad, and then just went… a little nuts.

As has happened in the past, Fake Steve is taking the criticisms and spinning it into a farce including hooks into the Tiger woods scandal, historic figures of social conscious, terrorists, former and current heads of state, and now pretty much everything short of a kitchen sink app for iPhone.

In the end, we can’t help but think his original point — that AT&T isn’t investing in a network to support the iPhone and future mobile computing platforms even though they have the resources to do so, and are maximizing short-term shareholder profits over long-term share-holder and customer value — has gotten lost in the gimmick.

And that’s a shame, because AT&T really needs to invest in their network and give iPhone users the infrastructure they’re paying for.

UPDATE: Gizmodo also shows, in nifty, PowerPointy form, how AT&T is making more money, yet spending less on networks, since the original iPhone was released.

[Thanks to everyone who sent in many and wonderful variants of all this!]

This is a story by the iPhone Blog. This feed is sponsored by The iPhone Blog Store.

Are AT&T’s Problems Getting Lost in the Fake Steve Backtracks, Backtalks, and Crazy Backflips?


Is AT&T to Blame for Poor iPhone Experience and Is Non-Exclusivity the Answer?

December 13th, 2009

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Is AT&T to blame for the poor iPhone experience in cities like San Francisco and New York, where calls drop, data fails, and bars depict signal strength with no real connection behind them? And if so, what can they do about it — build more network infrastructure, create tiered pricing, or maybe just give up on exclusivity?

Dan Lyons, writing under his nom-de-guerre Fake Steve Jobs recently posted a curse-filled parody, describing an entirely fictional, frighteningly plausible conversation between his character and an equally fake AT&T CEO, Randall Stephenson. It’s climax:

And now here we are. Right here in your own backyard, an American company creates a brilliant phone, and that company hands it to you, and gives you an exclusive deal to carry it — and all you guys can do is complain about how much people want to use it. You, Randall Stephenson, and your lazy stupid company — you are the problem. You are what’s wrong with this country.

I stopped, then. There was nothing on the line. Silence. I said, Randall? He goes, Yeah, I’m here. I said, Does any of that make sense? He says, Yeah, but we’re still not going to do it. See, when you run the numbers what you find is that we’re actually better off running a shitty network than making the investment to build a good one. It’s just numbers, Steve. You can’t charge enough to get a return on the investment.

AT&T has made billions in profit off of its user base (and off the iPhone!) and many of those users think it would behoove AT&T to take a large portion of those profits and re-invest them in expanding and improving their network. AT&T claims they’re doing just that, especially in high iPhone-density cities like San Francisco (now getting the 850Mhz band) and Dallas (upgrade to 7.2Mb HSPA). And as Fake Steve so deliciously skewered, AT&T Mobile CEO, Ralph de la Vaga has unfathomably discussed stopping users from using their devices under the “unlimited” data plans AT&T markets to them.

But is the problem really AT&T?

The New York Times recently ran an article claiming AT&T had a great network despite consumer dissatisfaction… a great network for every other phone other than the iPhone. Of course, few other data-centric phones are as numerous as the iPhone, and none are as easy to use, or have as many users using as many data-centric features. Not to mention other carriers, such as Rogers in Canada and GSM networks across Europe don’t seem to report the sheer number of problems AT&T users do. (We also remember with horror what happened when CrackBerry.com’s Kevin took his just-release Rogers BlackBerry Bold to New York.) Perhaps it’s the unique combination of AT&T’s specific network setup and Apple’s iPhone radios.

Either way, the perception problem is entirely AT&Ts at the moment and even with new customer-facing strategies like “Mark the Spot“, an app that lets iPhone users report problem areas, it’s not likely to change any time soon.

So let’s say AT&T does invest billions in infrastructure — more fast 3G HSPA bars in more places. It’s the right and logical things to do, and the thing Fake Steve absolutely nails AT&T for being too greedy to go about doing. The end result of that could be higher user satisfaction — and where do that lead?

Many suffer poor AT&T service just to own an iPhone. If they didn’t have to suffer any more, if AT&T’s network was considered as vast and solid as Verizon’s, how many more might jump on it? Could even a greatly enhanced and expanded AT&T handle 10 million more people getting iPhones and using even more data, requiring billions more to keep up, and who knows how much to actually get ahead of demand?

AT&T’s stick to go along with their network expansion carrot is, of course, capped data and tiered pricing. 3% of users “watching video” (or unofficially tethering, perhaps), using 40% of network resources. (And again, AT&T sold their bill of goods as “unlimited” so it’s hard to sympathize). But even capping, throttling, and/or tiering those 3%-ers won’t stop the millions of other hitting AT&T’s towers over and over again like high volume machine-gun fire. It’s not tenable. (Unless they’re willing to accept their destiny and become “dumb pipes“, then we’ll talk).

So that leaves moving the iPhone out of AT&T exclusivity and onto other US networks. It’s happened in the UK and Canada.

AT&T acknowledges it will happen eventually. The date is unknown to anyone outside the contract-signers, but exclusivity is generally pegged to end in 2010 — perhaps the end of 2010.

It won’t be an easy transition — T-Mobile uses a different frequency for their 3G bands and Verzion and Sprint use an entirely different radio technology. (Yes, even if Apple sold the iPhone 3GS unlocked, for use on any carrier, the only US carrier that whose 3G network is compatible right now is AT&T). That means, even with Verizon being interested, Apple would have to add T-Mobile’s bands, perhaps switch to an entirely new, GSM/CDMA hybrid radio so that it can reach America’s three other networks. A non-trivial solution to say the least, but perhaps a necessary one now.

If volumes keeps growing, even Verizon couldn’t handle the iPhone by itself either. Just like new highways ease traffic congestion, letting the iPhone speed along several carriers might just make it better for everyone involved — including AT&T.

If anyone can do it, Apple can. If not, Google might just be waiting in the wings…

This is a story by the iPhone Blog. This feed is sponsored by The iPhone Blog Store.

Is AT&T to Blame for Poor iPhone Experience and Is Non-Exclusivity the Answer?


AT&T Releases “Mark the Spot” iPhone App for Network Quality Feedback

December 7th, 2009

AT&T Mark the Spot for iPhone

AT&T has released a new iPhone app called AT&T Mark the Spot [Free - iTunes link] intended to allow customers to send in real-time, location-specific feedback about dropped calls, coverage gaps, or other network problems, have occurred.

AT&T is committed to providing its customers with the best network experience possible.

This application will help contribute towards this goal and its utilization is greatly appreciated.

AT&T is often criticized for poor signal quality and network availability when it comes to the iPhone, is this a positive sign that they’re trying to make things right?

[Thanks Keith and Gregg for the tip!]

This is a story by the iPhone Blog. This feed is sponsored by The iPhone Blog Store.

AT&T Releases “Mark the Spot” iPhone App for Network Quality Feedback


Apple Genius: AT&T Dropped Call Rate for NYC is 30%

September 30th, 2009

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According to a Gizmodo reader who took his iPhone to the Apple Store Genius Bar due to issues with dropped calls, he was told a 30% failure rate in New York City is normal.

Now, we all know AT&T’s network crumbles beneath the weight of the iPhone (and suspect any other single network might as well), but it’s not often we get numbers to go with it.

AT&T claims to be improving their network and adding more frequency, but with a fail rate that high, New Yorkers will believe it when their calls stop dropping.

This is a story by the iPhone Blog. This feed is sponsored by The iPhone Blog Store.

Apple Genius: AT&T Dropped Call Rate for NYC is 30%


AT&T MMS Network Outage Already?

September 26th, 2009

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Boy Genius is reporting that AT&T MMS seems to be down for some users in some states, and what’s more:

a quick call to AT&T’s customer care line revealed that there is a known latency issue with MMS in all states with no estimated time of repair.

So how about it? Are you experiencing any delays in sending or receiving MMS? Any outages? Either way, let us know where you are, and how long you’ve been having the problem.

This is a story by the iPhone Blog. This feed is sponsored by The iPhone Blog Store.

AT&T MMS Network Outage Already?


AT&T iPhone MMS and Tethering Delayed Due to Bandwidth Concerns?

September 3rd, 2009

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Has AT&T been delaying the US launch of iPhone 3.0’s MMS and tethering services due to concerns about their network being able to handle it? Um, yeah, that would have been our guess… The New York Times, however, states it as fact:

[AT&T] has also delayed bandwidth-heavy features like multimedia messaging, or text messages containing pictures, audio or video. It is also postponing “tethering,” which allows the iPhone to share its Internet connection with a computer, a standard feature on many rival smartphones. AT&T says it has no intention of capping how much data iPhone owners use.

How big is the concern? AT&T claims they’ve diverted $18 billion to upgrade and expand their 3G network to handle the load, but that getting local approval to build towers takes time, as does upgrading existing infrastructure.

Analysts quoted seem to agree with TiPb readers that AT&T may just have been hit first and hardest by the iPhone, but other networks will face the same problem if/when they start to see iPhone class devices hitting their towers in the same numbers.

So, is AT&T doing the right thing delaying MMS and tethering until, you know, they’ll actually work, or do you just want your features and want them now? Or do you just not buy this whole “data usage conspiracy” at all?

This is a story by the iPhone Blog. This feed is sponsored by The iPhone Blog Store.

AT&T iPhone MMS and Tethering Delayed Due to Bandwidth Concerns?