Yes i was told to do the same thing(netstat)and i had 7 connections running and the ntl guy said that is my problem.....
I explained to him that these were open in the daytime when i was not suffering with ping loss/packet loss so it couldn't be that,he said perhaps there wasn't so much traffic in the daytime so the open connections wouldn't effect it so much
I have a program which i can use that turns all activities off on my computer(except my firewall)just for gaming so i ran this and then checked again netstat...i had only one open,so then went online but it was no different with the bad pings and packet losses
So what next?