I wouldn't do that at all - don;t rule out first line support, they have and do spot lots of errors that people forget or don't think important. Like DSL dropping out becuase a sky box is on the line and unfiltered. You'd be suprised at how many times when I was doing 3rd line support that the customer hand't actually done anything which first line had asked them to, such as reboot modems etc... If I was you, I'd monitor pings, and tracerts to set IPs throughout the day (say 5 ip of game servers not all on the same host/network). Then email that to their support team. You can prove during the day network performance is ok, and that it's unlikely to be an error on your property / config as it's time related. Then you can prove that during peak hours, the connection is saverly lagged / oversubscribed. Tracerts will also point the finger at certain switches / routers that could need looking at.