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5GHz 802.11ac performance<br />
I plugged a D-Link DWA-192 USB Wi-Fi adapter (go.pcworld.com/<br />
dlinkdwa192) into my test client to measure each router’s 802.11ac<br />
performance. I retired the Asus USB-AC56 adapter I was using<br />
previously, because it’s limited to two spatial streams where the<br />
D-Link supports three. The WRT1900ACS performed very well here,<br />
especially at long range. The Google OnHub also performed well; in<br />
fact, it was faster than all the other routers when the client was in the<br />
same room as the router, nine feet away, and when the client was in<br />
my great room, 33 feet from the router with one interior insulated<br />
wall in between.<br />
But the new Linksys was the fastest performer by a wide margin<br />
at long range, when the client was in my sun room, 65 feet from the<br />
router and separated by two insulated interior walls. The OnHub,<br />
meanwhile, fell way behind with the client in this location; and the<br />
older Linksys was surprisingly slow at close range.<br />
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