Hi there and thanks for reading. My config (part of): - Desktop PC with wired LAN connection to router. Router connects to ISP. - I connect laptop (if docked) via wire on adapter desktop. bridged with LAN to router; everything works ok then ! - Same desktop has USB wireless connection stick - the wireless connection is bridged (with XP bridge) to the wired connection to the router - My laptop (Dell Latitude D600) also has a wireless adapter, built-in (Intel Pro) : I want to use the connection anywhere in my house, the same as it was wired. - 802.11 authentication is disabled for the wireless connections - Both machines have XP Pro SP2, both drivers of the wireless devices are the latest (signed); WEP enabled, ZCS is started. What happens is: - when I connect through the wireless connection on my laptop to the desktop (with the wired connections not connected) at regular intervals (abt 5-10 minutes) the internet connection drops. - while the internet connection is down, the LAN connection between the two remains, because I can still transfer files between them - I still can ping the desktop (and other devices in LAN) but CANNOT ping the router (192.168.0.1) anymore; all pings that works are also in the 192.168.0.x range and "given" by the router - after some minutes the internet connection restores and continues to work again, and everything can be pinged again - then it goes down again (after 5-10 minutes) etc So the question is: why does it work while wired, but why does the internet link drop while wireless? Thanks a lot for your time and possible answers... Kees (the Netherlands)