Windows 7 - Loss of network connectivity

Heya,

This has been an issue since I upgraded to 7201. It isn't constant, and seems to be worse when I'm downloading large files, especially multiple files from one source (like an album in iTunes). It is fixed by release/renew (or just letting Diagnostics do that).

If I'm not using a lot of data (regular web browsing, working on a database online, etc), it seems perfectly fine. It is holding so far downloading one track at a time on iTunes, but if I do 2, it drops the connection.

I'm using the Home network config, router is working normally, and I can't recall this happening before 7201. I've reset the router, upgraded firmware, and it only happens on this PC. I've set WINS, tried all settings for TCP/IP 4 and 6, and using the other ethernet port on my motherboard.

More of an annoyance, really, but I can't figure it out and it is bugging the hell out of me.

EDIT:

I can still get 1 mb/s on a single download, but trying 2, I get 600/400 for about 10-15 seconds until it disconnects.

I'm not sure if it's a related problem but I'm running 7100 and in the past week I've started getting frequent loss of internet connectivity while downloading torrents. Disabling/enabling the network adapter fixes it but sometimes it'll be less than a minute before it goes again, or up to an hour.

Again, it doesn't seem to happen during regular browsing while not downloading. I'm on a wired connection btw, my NC10 running windows 7100 and iphone can access the internet fine (wirelessly) during these disconnects, which rules out a router issue.

Just as an update, the problem remains in 7201. Works fine downloading one file, instantly craps out on DLing two or more, even from different sources.

Edit: Er, obviously, I'm an idiot, since my OP was on 7201 as well. In any case, the problem remains. I even reinstalled my ethernet drivers and router firmware.

Click on the start orb> right click on Computer> click on Manage. Then go on to device manager. Navigate to Network Adapters and right click on your wireless device and go to properties. Then switch to the advanced tab, and click on Ad Hoc Power Management. Then change the value to disabled.
Hope this helps.

Well, in my case, I'm wired into the router, so I don't have that option... though I've disabled all of the power saving and sleep controls...

I'm having this problem too while torrenting, if I torrent and do nothing else it's fine but the moment I start doing anything else that requires using the internet I have to diagnose the adapter to fix it.(build 7100)