I enjoy gaming, particularly CSS on Steam, but frequently my RTT goes from 40ms to over 100ms and I get kicked. I know what's doing it, the kids have started uploading/downloading videos to Facebook or they are watching Netflix.

One of the key reasons for me buying the 7800DXL was because I read I could ring-fence the necessary Steam bandwidth/ping and let the kids have the rest. But.......
....I haven't a clue how to set it up and don't have enough knowledge to make sense of the manual, can anyone help, I'm sure I'm not the only one to be in this position

Thanks
Mid