I purchased their n300 wireless USB adapter (802.11n) and installed it for one of my customers. It wasn’t as easy to install as most Mac users would like, but it wasn’t too terribly hard. The package included a CD and good, step-by-step instructions.

Once installed, I could see and connect to wireless networks that were outside the range of other wireless Macs or PCs in the same offices. That was impressive. I connected to the wireless router and confirmed that the computer could connect to the Internet. Then I shut the computer down and restarted to make sure all my changes were saved.

Compatible with both Windows and Mac computers, the Net-Dyn dual band USB wireless Wi-Fi adapter is an outstanding choice for adding Wi-Fi to any computer.

This computer had been in service for several years already and had a significant amount of corruption in the file system. When I turned the power back on, the system didn’t detect the adapter plugged into the USB port. I had to reinsert it before it would work again. Restarting the system without powering down didn’t have the same problem. AftertheMac’s tech support people recommended repairing disk permissions and running some other routine cleanup utilities. I tried two different utilities before their tech suggested I try OnyX.

I installed that and ran the cleaning utility as well as a few others to clear application and system caches and repair disk permissions again. That time it worked! The only real drawback to this adapter was the tech support. AftertheMac is a small company with limited resources. Nine times out of ten, their 800 number rang to an answering machine, and it usually took a day or more for anyone to call me back. Once I had them on the phone, they were always very helpful and seemed to know what they were doing. Is compatible with OS X 10.3+ and will connect to 802.11b, g, or n routers.

You can see more information at their. If you’ve used this adapter (or another after-market Mac accessory), let me know in the comments.

I’m curious about your experience with it.

As the Mac 911 columnist at Macworld, I’ve received hundreds of emails from people who have had Wi-Fi fail on their computers. In August 2016, I wrote a column that provided to troubleshoot the problem, which is sometimes caused by system software, sometimes by failed hardware, and sometimes by a bad connection. If you’ve gone through all those stages or you want a second Wi-Fi connection on your Mac—useful for firewalls, relaying a Wi-Fi network, and other purposes—the (model EW-7822ULC; $24.99 MSRP; available on ) seems to be not only a good solution, but the only solution.

Once, a variety of alternatives existed for the Mac, but there’s no simply not enough of a market for them, and Edimax continues to update driver and utility software, keeping it viable. The drivers for macOS 10.12 Sierra only appeared in January, if you had previously discounted this as an option.

The same driver also support OS X 10.7 to 10.11, making it a great solution for owners of Macs that can’t be updated or they prefer to keep on an older release, and have had a Wi-Fi failure. Edimax Even better, the Edimax adapter isn’t an old flavor of Wi-Fi. Rather, it’s the very hippest and latest thing: it uses 802.11ac Wave 2 with MU-MIMO, terms which require some unpacking.

You may know that Wi-Fi is a trademark used by a trade group to cover a variety of wireless LAN (WLAN) standards that start with 802.11. The first standards in the family, 802.11a and b, appeared in 1999; the latest, 802.11ac, starting appearing in Apple’s base stations and Macs in 2013, and later in iOS devices. (All current models for sale of Macs, iPhones, and iPads have 802.11ac.) However, 802.11ac has appeared in waves. Wave 2 adds new features that can increase throughput and help with network capacity, but not all routers (and none of Apple’s) support it. MU-MIMO allows a Wave 2 router to divvy up the simultaneous conversations it can have among multiple devices if those devices can’t occupy all the slots. A computer might fill the typical four slots available, while the Edimax AC1200 fills two and some mobile devices only use one.

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