X61T 4695 wireless stops working after ~2hrs...???

[mtbiac]

In certain locations, my X61T's 4695 wireless connection stops working after approx 1hr. I'm very confused as to why this could be happening. running Windows Vista Ultimate, and using built in Vista wireless management. any ideas?

thanks

[erik]

do you have any antivirus and/or firewall software installed?   if so, try disabling it/them temporarily to see if the problem still exists.