Managed to get more connections then normal!

My internet service provider is cable one they have a limit of connections to 2 also downloading is free from them. Anyways I opened up a 3rd connection and some how managed to get it to work is there some type of work around to get as many connections as I want? Im using Grabit. I tried to use 4 connections but now it says to many connections error. Thats what I was getting in the 3rd connection just let it sit there for 10 mins and it finally let it work.

Its all just a just a guessing game with stuff like that...