I have a Windows 7 laptop on a personal WiFi network. When I try to do anything with significant network traffic, like stream video, it has periods where it shows traffic of around 3Mbps (which is what I expect for this setup), but then long periods - up to hours - where it caps at tens of kilobytes, causing jittery streaming. During those periods the traffic rate never goes above a couple of tens of Kb, no matter what I am doing.
- I have another Windows 7 box on the same network, which always streams at the expected rate, so it's not a problem with the network or the ISP.
- I've tried resetting the network adapter, and that fixes the problem for a while, but it comes back quickly
- I've run a full McAfee malware scan
- The CPU load is low
- No other processes are using the network, and no other computers are using the network.
- Behaviour is the same whether I am using Chrome or Explorer
- Machine works fine through Ethernet.
- Adapter is a builtin Centrino Wireless N 1030
- WiFi driver is "up to date" (2010!)
I've noticed that any change to the Wireless adapter settings, or a network disconnect/connnect results in good traffic speed for a few minutes, but it then drops back to a few Kbps.
How can I fix this?