
I also got a “No Device” status when I opened the Ralink Utility. On a properly installed dongle the activity light should be flashing.

The dongle showed up in System Profiler, but the blue activity light on the USB dongle stayed on constantly. I installed the driver, rebooted and plugged the dongle in.

And it was on sale for about $40 at NCIX in Vancouver. I chose the Buffalo Wireless N USB dongle WLI-UC-GN because it uses the Ralink chipset which is well supported on Macs. – the site is in Japanese, but you can get the main idea by looking at the screen print. Hopefully this post will help someone else get their Buffalo Wifi adapter running with fewer hassles. It took me a couple of days to get it running. Here’s what I did to get the Buffalo WLI-UC-GN Wireless N USB dongle working with OSX 10.5.8, Darwin kernel 9.8.0. The chipsets are used by a variety of manufactures to build WiFi N USB adapters. Well fortunately RAlink develops drivers for all their wireless chipsets that enable them to work with Windows, Linux AND Mac! The consensus seemed to be it was impossible. No one even wanted to talk about using a USB wireless adapter on a Mac laptop. However after checking out the three Mac stores in downtown Vancouver, Simply Computing, WestWorld and Mac Market I came up dry. I didn’t anticipate any issues with just adding a USB wifi adapter. But I needed a second WiFi port for a client application.

Transmission method Direct sequence spread spectrum (DSSS), OFDM, MIMO Wireless security WPA2-PSK (AES), WPA-PSK (AES), 128/64-bit WEP Easily plugs into any available USB port on your desktop or laptop computer With speeds up to 300 Mbps, BUFFALO AirStation N300 Dual Band Wireless USB Adapter provides a fast 802.11n wireless connection perfect for emailing and surfing the web, downloading your favorite music and streaming HD video The simple way to add dual-band 11n connectivity to Windows computer or laptop from any available USB port
