Wi-fi

Did zapping Bluetooth fix your Wi-Fi? Let's figure out why

This past week I brought you a tip about fixing Wi-Fi wake from sleep issues on some Mavericks-equipped Macs. The fix involves deleting a file in your Mac's library folder.

Why it works is still beyond my understanding, but suffice it to say that it's fixed the problem for me, as well as for many of you. Now I'd like to take it to the next step to figure out why the problem is happening.

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How to turn your Mac's internet connection into a Wi-Fi hotspot with Internet Sharing

Wi-Fi is almost ubiquitous now but that doesn't mean it always comes cheap. Hotels especially love to nickel and dime people for Wi-Fi, sometimes offering different prices for slightly different speeds and often restricting or charging extra for multiple devices. If you're traveling internationally and want to avoid roaming costs on your mobile devices it can be especially aggravating. Luckily Apple makes it simple to share the Wi-Fi connection on your Mac with your iPhone, iPad, or even other Macs.

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Visualizing Wi-Fi: What all those signals would look like if you could see them

802.11ac and 802.11n Wi-Fi stream out of our Apple AirPort routers at 2.4 and 5GHz and stream into our iPhones and iPads and iPods and Macs, but what would all those signals, the ones saturating us all the time these days, look like if we could see them? Well, Nickolay Lamm, with the help of Dr. M. Browning Vogel, took a shot at showing us on MyDeals:

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LIFX Wi-Fi enabled iPhone controlled LED light bulb arrives on Kickstarter

Every now and then a project arrives on Kickstarter that just blows people away and the pledges go through the roof. One example of this is the LIFX Wi-Fi enabled LED light bulb and it appears to have captured everyone’s imagination. The LIFX is a state of the art LED bulb that you can control with your iPhone including color changes, on/off, dimming and so much more.

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How to keep fast 802.11n Wi-Fi speeds by switching old iOS devices to Bluetooth connections

Not all iOS device Wi-Fi speeds are created equal. If your family has a mix of devices, like an iPhone 4S, iPad 2, and iPod touch 3, it can be difficult to get maximum performance from your Wi-Fi router. The iPad can do fast 802.11n on the relatively clear 5GHz frequency. The iPhone 4S can do fast 802.11n, but only on the more cluttered 2.4GHz frequency. The iPod touch can only do slower 802.11b/g, and only on 2.4GHz. Even if you have a dual-band router, like Apple's latest AirPorts, even as the iPad zips along at 802.11n on 5Ghz, the slower iPod touch or even an iPhone 3GS will force the iPhone 4S down to 802.11b/g on 2.4GHz. So what's a geek to do?

If you have a desktop computer or server that stays on most of the time, you can set up Bluetooth tethering for your older devices, getting them off Wi-Fi and letting your 802.11n devices speed along unhindered. It's a bit of a workaround, and your Bluetooth-connected devices will be limited to 20mbs, but the slower slows will also give you faster fasts on your more modern devices. For me, that's a great tradeoff. If you agree, here's how to do it on OS X Mountain Lion.

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iPhone 5 rumored to be getting low power, Wi-Fi Direct enabled chipset... and AirDrop?

Joining all the previous rumors, the upcoming iPhone 5 now looks like it might be getting the Broadcom BCM4334 radio chipset. The BCM4334 comes complete with much lower power draw for Wi-Fi, support for Wi-Fi Direct transfers, and Bluetooth 4.0, among other things.

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Apple investigating new iPad Wi-Fi problems, will replace problematic units

According to a leaked internal AppleCare document, Apple is currently investigating Wi-Fi problems with the new iPad. The issues appear to relate to problems with not only poor Wi-Fi speeds but also connection drops and in some cases the inability to even see a particular network.

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Only 6% of iPad sessions on cell networks, even LTE iPads spend most time on Wi-Fi

Localytics has recently compiled some of their data through apps, and has concluded that only 6% of iPad sessions are made through a cellular network of some kind. They've also figured out that 89.7% of iPads out there are Wi-Fi-only, while 1.5% are the LTE-enabled new iPads. Even among new iPads, only 36% of the sessions are using 4G LTE.  It's worth noting that the new iPad just went on sale in a lot of countries today, though other studies show that the U.S. takes up the lion's share of app activity.

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Is your new iPad getting a little hot under the corner?

My original iPad and iPad 2 have always been remarkably cool, even when playing graphically intensive games or high definition video, but my new iPad is getting a little warm to the touch.

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Could we see 802.11ac 5G gigabit Wi-Fi in iPhone and iPad in 2012?

802.11ac, sometimes referred to as 5G or gigabit Wi-Fi, hasn't been finalized and Apple seldom if ever speaks ahead of time about the incorporation of new technology into the iPhone, iPad, or Mac lines, but they were aggressive in adopting 802.11n while it was in the draft stages and 802.11ac appears to have even more to recommend it.

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