I've seen many reports of users having trouble with WIFI dongles. We're tried and tested the Tenda W150M with the Duo, Solo and ET-9000 and it works spot on. Can be ordered here http://www.world-of-satellite.co.uk/Networking-WiFi/Tenda-150Mbps-Portable-Wireless-Access-Point-Router-Wireless-wifibridge-WIFI-W150M

This is a WiFi Bridge NOT a USB WiFi Dongle. Its an alternative for anyone having trouble with USB WiFi Dongles.