Well, count me as one of those for whom 7127 didn't fix the problem. (Again, I'm running off of my motherboard's LAN, so it isn't wireless.) I've had two situations where my internet connection died, to be "fixed" only by a reboot. (In one of the two, curiously, my "Network--Internet Access" task-bar icon showed that while I was still connected to the router, I was't connected to the internet--although troubleshooting couldn't detect any problem, hence the reboot. The other time--as has occurred in the past--my "Network--Internet Access" icon shows no problem, even as I need to reboot to reconnect.)
And, again unlike some others, this has never occurred to me while just downloading (even really large files, such as 7 RC or 7127). I only notice it when trying to load a new page--which is not to say it necessarily is connected with loading new pages (it could occur while just "statically" looking at a loaded page), but that this is when I first notice the problem).
Anyway, the bottom line for me is that 7127 isn't the magic bullet. Fortunately, this only occurs (for me) once every day or two, so it isn't so disruptive as to drive me back to Vista (or to drink)....