Windows 7 SP1 causes slow internet connection

Hi,

I formatted my 32bit Vista PC this weekend and loaded Windows 7 64bit on here. All fine, except my internet connection speed has now plummeted from around 15Mb to 8Kbps!! It's taken about 5 mins just to load this page

I've Googled and there seems to be a lot of similar issues. I've tried the following:

1. Run 'cmd' prompt as admin, and typed: netsh int tcp set global autotuning=disabled. It said 'ok' but after a reboot, nothing changed.

2. Run 'cmd' prompt as admin, and typed: ipconfig /release then ipconfig /reset. It output a load of stuff, and appeared to have done what it was supposed to do, but again, after reboot there was no change.

3. Go to 'control panel > network and internet > internet options > connections > lan settings' and uncheck 'automatically detect settings'. Reboot, still the same problem. So I reversed this and checked it again. No change still.

I've checked the modem/router etc and that's all fine - other people in the office are connected to it and are getting the correct speeds, both plugged in and via wifi. I'm plugged in.


I'm now at a loss as to what to do. Nothing has worked, and I literally can't even put up with this - it's just totally unusable.

Can anyone recommend anything else before I make the depressing switch back down to Vista?

Thanks all!

Hi Severedsolo,

I've filled out what I can of my system specs. Regarding the internet connection, it's a 20Mb Virgin Media cable broadband connection. Usually we pull about 15-18Mb on it. There are three other users of the connection - very light users who check their email every now and then. So this has nothing to do with the connection itself I'm 100% certain. I came in over the weekend to do this system upgrade - the connection was fine until I got Windows 7 installed, after which it bombed. I used my laptop to check and the laptop was still getting 15+Mb, yet my desktop was getting 8-30Kb. It's still the same. The connection is fine for everybody else, but I'm getting around 8Kbps on my upgraded Windows 7 desktop.

It had all gone so smoothly until now!

I know this is almost no use to anybody now, but I made sure my drivers were up to date, then out of boredom I deleted the windows.old file which was taking up 200+Gb hard-drive space. I then rebooted and the system did a very lengthy black-screen file system check, which eventually completed. Now it seems much better.

Odd, and I have no idea whether it's fully fixed or not as the speed seems intermittent, but it's at least workable. Thanks Martin.