I've got a similar issue. I've just upgraded to Windows7, previously everything was fine. Now I can connect through the LAN to everything. However when I connect Wireless I can get on the network but not the internet my error message is 'Cannot communicate with DNS service'. My router is Linksys WAG160N. My adapter is Atheros AR5007 and my laptop is a Compaq CG60-430SA. It took me ages to find the latest driver on the HP site and it made no difference. All the drivers are up to date, the router has been reset and my hair has been pulled out. any other ideas? I've un-installed and reinstalled, rolled back, dissabled, enabled.