Hey everyone,
I've been struggling with this problem for a month now. I've followed every bit of advice from this thread and I've only just stumbled upon a fairly adequate fix. I just wanted to throw it out here in case it helps someone else. Using the (microsoft) drivers btw.
I have an HP Pavilion DV6275 running Vista Home Premium and I've had this notebook since March of 2007. Everything worked perfectly until about a month ago when I did a massive update, massive on account of some "optional" updates I decided to load, in addition to the security updates. Anyhow, that's when everything took a dive on me. And you all know what that means...
I started noticing the wireless switch LED would start to flicker blue/orange (orange is off) if I started opening more windows, browsing high-load pages or using any p2p programs/download managers. And since everyone has claimed it necessary to disable Vista's ability to turn the radio off for "power saving", it got me thinking that it may be related to power. Of course while you're plugged in, power shouldn't be an issue, but if you're on battery, well you know... Even though I'm plugged in, I still have my battery clipped in, and it's got barely enough life to last 2 minutes. I disabled the Vista power shut-off and it made little difference.
So I just took the battery out, leaving the notebook plugged in. I've all but eliminated the problem... just about. So I'm guessing there's a critical battery-life conflict somewhere within the recent updates or BIOS which is causing the problem. Of course this is just something I stumbled upon. Try it out and post your results. And if you're savvy enough, maybe try to find a correlation between Vista's ability to disable the radio and the life of the battery or power management in general. I, unfortunately, am not savvy enough!
anyways, Hope it helps...
Kent