2820n is working well with a range of wi-fi units, laptops with integrated & usb cards etc, BUT just tried connecting a pc with a Linksys WUSB54-GB usb adaptor. Network has hidden SSID, and mac code linking, Linksys connects fine if SSID is visible, but as soon as it is hidden it cannot reconnect.
Any ideas?, as this seems to be specific to the Linksys (which is Cisco so would have thought industry standard)
Thanks

Your right it is cisco underneath, but it prob wasnt designed the same way. i would go with a firmware update on the dongle. i have had this issue with other usb dongles and its been a case of firmware or put it in the bottom of a draw.