judgecorp writes: "The new fast Wi-Fi, 802.11n, has a problem in the enterprise. Businesses power their access points over the Ethernet to avoid extra wiring, but 802.11n uses two radios and multiple antennas, which overloads today's power-over-Ethernet standard (802.3af). This and other issues has caused a probably temporary slowdown in business Wi-Fi sales, and Wi-Fi equipment makers from Cisco on down have proposed a ton of different workarounds. Surprisingly, Siemens says it's solved the basic problem, running full-strength 802.11n over plain 802.3af PoE, in an access point based on the same Wi-Fi chips used by Cisco and the others. Even more surprisingly, Wi-Fi analyst Craig Mathias says the claim is true based on lab tests. Now, if only Siemens would tell us how it is done..."