I recently installed Ubuntu 12.04 on my windows machine. It's a custom built using: Intel 3570k Asus P8Z77 motherboard Asus PCE N15 network card
When I first boot, everything is okay. However, after browsing a bit (or simply coming back later), the connection gets real slow; eventually it can't load anything. I've tried the steps here: http://www.unixmen.com/resolve-slow-connexion-when-using-wifi-in-ubuntu-1104-natty-narwhal/
Step 1 didn't work. Step 2 rmmod "is not a recognized module" (or something like that, not found). I haven't tried step 3 because I'd rather not disable ipv6 and it doesn't explain why that may be a problem