No Wi-Fi for Grantsdale
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Intel has dropped plans to include integrated Wi-Fi in its 915G/P and 925X chipsets. The chipsets - formerly codenamed Grantsdale - were due to have Wi-Fi access points built in at launch.
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(InfoWorld) - The Wi-Fi connection on Apple's recently releasedÂ iPhoneÂ seems to be the source of a big headache for network administrators at Duke University. The built-in 802.11b/g adapters on several iPhones periodically flood sections of the Durham, N.C. school's pervasive wireless LAN with MAC address requests, temporarily knocking out anywhere from a dozen to 30 wireless access points at a time. Campus network staff are talking with Cisco, the main WLAN provider, and have opened a help desk ticket with Apple. But so far, the precise cause of the problem remains unknown. "Because of the time of year for us, it's not a severe problem," says Kevin Miller, assistant director, communications infrastructure, with Duke's Office of Information Technology. "But from late August through May, our wireless net is critical. My concern is how many students will be coming back in August with iPhones? It's a pretty big annoyance, right now, with 20-30 access points signaling they're down, and then coming back up a few minutes later. But in late August, this would be devastating." That's because the misbehaving iPhones flood the access points with up to 18,000 address requests per second, nearly 10Mbps of bandwidth, and monopolizing the AP's airtime. The access points show up as "out of service." For 10-15 minutes, there's no way to communicate with them, Miller says. "When the problem occurs, we see dozens of access points in that condition," Miller says. The network team began capturing wireless traffic for analysis and that's when they discovered that the offending devices were iPhones. Right now, Miller says, there are about 150 of the Apple devices registered on the campus WLAN. The requests are for what is, at least for Duke's network, an invalid router address. Devices use the Address Resolution Protocol (ARP) to request the MAC address of the destination node, for which it already has the IP address. When it doesn't get an answer, the iPhone just keeps asking. "I'm not exactly sure where the 'bad' router address is coming from," Miller says. One possibility: each offending iPhone may have been first connected to a home wireless router or gateway, and it may automatically and repeatedly be trying to reconnect to it again when something happens to the iPhone's initial connection on the Duke WLAN. They're still sorting out what that "something" is. On two occasions, one last Friday and one today, Monday 16 July, both users seemed to be behaving completely normally, yet both iPhones started flooding the net with ARP requests. In both cases, the user first successfully connected to the WLAN at one location, and then moved to another building, where the ARP flood began. "It may have something to do with the iPhone losing connectivity and then trying to reconnect in a new location," Miller says. Most of the W LAN is comprised of Cisco thin access points and controllers. Some older autonomous Cisco Aironet access points tend to uncover the flooding first, since they try to resolve the ARP request themselves. But Miller's team has seen the CPU utilization on the WLAN controllers spiking as they try to process the request flood passed on to them in control traffic from the thin access points. "I don't believe it's a Cisco problem in any way, shape, or form," he says firmly. So far, the communication with Apple has been "one-way," Miller says, with the Duke team filing the problem ticket. He says Apple has told him the problem is being "escalated" but as of mid-afternoon Monday, nothing substantive had been heard Apple.
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Ruckus Wireless CEO Selina Lo says Wi-Fi isn't up for the task of supporting the new apps and handheld devices entering the market .
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By Clint Swett, The Sacramento Bee, Calif.  Jun. 21--Two low-income housing communities in Sacramento will offer their residents free Wi-Fi Internet access and computers later this fall.
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InfoWorld - AT&T's wireless data networks in the Southeast and Midwest U.S. are down, causing BlackBerry and iPhone users to be without data services.
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For all the buzz about municipal Wi-Fi networks, getting a system off the ground can be an arduous process mired in a tangle of politics and conflicting needs and laws, experts say.
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By Terri Hardy, The Sacramento Bee, Calif.  Jun. 22--Residents and visitors will have access to free wireless Internet coverage in most areas of the city by October 2009 under a deal approved Thursday by the City Council.
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By M.K. Guetersloh, The Pantagraph, Bloomington, Ill.  Feb. 25--BLOOMINGTON -- Twin City officials would like to see more people wired. Make that wireless.
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SAN FRANCISCO - Technologies that extend the range of Wi-Fi wireless LANs are making that low-priced technology an option for broadband Internet access in U.S. rural areas with limited broadband options.
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No other suitors yet Breatheâs rescue of Biscit Internet is off, the would-be rescuer announced this afternoon.â¦
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By CONNING CHU  Waukesha - A report made public Friday indicates initial testing for a proposed citywide Wi-Fi network fell short of expectations, but a city official said he remains optimistic a successful system can be developed.
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EarthLink says it can't afford to foot the bill to build citywide Wi-Fi networks, jeopardizing cities' plans to provide low-income residents with affordable broadband.
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By The Associated Press  In a May 21 story about municipal wireless projects, The Associated Press erroneously reported that EarthLink Inc. suspended new bids. The company said it won't seek as many bids, but isn't completely ruling out new ones.
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AT&T has called off its ambitious plans to roll out free municipal WiFi service over a 62-square-mile area covering St. Louis County. While the company had been wrestling with the problem of how to build a business model around this lucrative service, what may have ended up scuttling the deal was an unforeseen technical difficulty.
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(InfoWorld) - Singapore's Wireless@SGÂ free Wi-Fi serviceÂ entered operation Friday, one month ahead of schedule, the Infocomm Development of Authority of Singapore said, adding that availability of the service will be extended to three years instead of two. The free Wireless@SG service, conceived as a way to boost wireless Internet usage in Singapore, will run from January 2007 until December 2009, IDA said in a statement. Plans for the service were first announced in March. Wireless@SG access is now available in 254 locations across Singapore. A list of the locations is available on the IDA's Web site . Singapore TelecommunicationsÂ (SingTel), QMax Communications, and iCell Network are the three companies selected by IDA to operate the Wireless@SG service. All three companies, which are financing the bulk of the network construction costs themselves, must meet subscriber targets set by IDA. Once registered with one operator, users can roam between that operator's network and those built by the other two operators. The Wireless@SG will be offered as a two-tier service. The basic service, which is free, offers users unlimited Internet access via a 512KbpsÂ connection. A premium service will also be available, with operators charging a fee for faster connections. The service is designed to cover busy urban areas across Singapore, with the total number of Wi-Fi hotspots expected to rise from around 900 today to 5,000 by September of next year, IDA said.
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EarthLink Inc.&#39;s current contract to build a municipal Wi-Fi network in San Francisco appears to be dead following a restructuring of the struggling Internet service provider.
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Overseas WLAN access at no extra charge - for now