Tested@
Model: WL-500g
Firmware: 1.6.5.3

Device WORKING
Brandname: Logitech
Brandtype: QuickCam Pro 4000
USB Interface: USB 1.1 compliant
URL To manufacturer: http://www.logitech.com
URL To product: http://www.logitech.com/index.cfm?pa...3&languageid=1

The camera has been connected directly to the router and by a Goodway USB HUB. Both working.