Hi We have a user with a Clevo laptop with a built in 802.11b module. The user can successfully associate with our Cisco AP1200s where they only have the 802.11b wireless modules installed. Where the units support both 802.11b/g then the user sees a symbol of a network in their client tool but no SSID is displayed and they can't associate. All the APs are set up the same as open units broadcasting their SSIDs. We have the latest drivers from the Clevo website. If I take another 802.11b card - I've tried an Orinoco Gold Card and that works fine. The AP1200s with just 802.11b support are running 12.2(15)JA and those running modules supporting both 802.11b/g are on 12.2(13)JA4. Any ideas on settings at either end to help or is it a case of compliance and it being an older chipset supporting an older standard. Thanks for your help Martyn