Why Your Wi-Fi is Slow (And How You Can Fix It)

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The first 801.11ac chipsets are coming soon, but 802.11n is likely to stick around for many years to come -- both in the business world and our homes. Unfortunately, the 300Mbps (megabits per second) that the n-standard promises rarely delivers anything even close and proves to be a massive bottleneck in the days of 50/100Mbps (or more?)

http://www.pcworld.com/article/255502/why_your_wifi_is_slow_and_how_you_can_fix_it.html