There are differences in the machines. Compare them and the firewalls, OS and more. I am not offering to help you find it but pointing to where it is.
Hi this is a very werid question and i cant seem to find a answer to, My dad's computer is next to my Router and my computer is around 20 feet to my room. Everytime i play Counter-strike or Call of duty 4 online on my computer i get around 30-40 ping or latency while on my dads's computer i get around 10-20? why is that? i even changed my computer got a new one and i still have the same problem. i dont know if its my ethernet cable or.. what. or is it just that hes so close to the router. people told me that its not that its my setting i changed my adapter settings to full duplex 100 mb.