I encounter a problem I did not have before, after three years with the same latop (vaio, vista). For the past six months or more, the wlan disconnect systematically when norton antivirus starts a liveupdate or scanning. Sometimes, the disconnect lasts for a few hours, but mostly for between 15 minutes to one hour. During that time, no access to internet anymore... I figured out or guessed the disconnect originates from Norton as it is synchronized with the message of a liveupdate from Norton. Any idea how to solve the problem? Thanks in advance, Dominique