If your internet speed seems crappy, you probably go check Speedtest.net, yes? It's a quick way to ... I bet you didn't even know Netflix had a speed test tool, and I don't blame you if so ...

This free upgrade enables upload speeds up to 100% faster and is available to over 20 million Comcast customers.

This is how you can check the network adapter speed and diagnose if any issues occur without the use of any third-party application. TIP: Use the Network Speed Test app for Windows from Microsoft ...