My Beta 23 Asus RT-N16's wireless rate (seen on the Status page) sometimes crawls down to 2, 5.5 and 11 Mbps, seemingly without a cause (no more noise than usual), and it makes the wireless connections slow. Just now it even dropped the connection for a second. It's set to Access Point in B/G mixed mode, i.e. with a max. (and usual) rate of 54 Mbps, and secured using WPA / WPA2 Personal + TKIP / AES. The fact that a wired machine is maxing out the 30 Mbps downlink connection has been a suspected cause, but it doesn't explain the WiFi rate dropping down, and the QOS works just like it should with great speed for wireless clients when the rate is at 54 Mbps, which it normally is. Rates in the "Device list" are normal (currently five devices). The CPU load seems fine (currently 0.20 / 0.14 / 0.05). Is it possible the WiFi chip is overheating? The router doesn't feel particularly hot externally. Any other clues? I've tried rebooting the router, to no avail.
I should mention that about a week ago, the WiFi also unexpectedly messed up. It wouldn't accept any wireless clients, even after upgrading the firmware and cleaning the NVRAM. It was, surprisingly, solved by setting the channel from 6 to 11, so I left it at that, but I guess it's a sign that the WiFi is about to die completely. Any ideas?
Thanks, and the utmost gratitude for an excellent firmware!