"dont ping google when ur joining"
Because that uses so much bandwidth huh?
No, because it's distracting you from the game 
What kind of connection do you have? What's your upstream like? Router? If possible, try connecting directly to your modem, without going through the router, and disable the firewall. If that helps, you may try plugging in the different systems again and see which is responsible. To me, it sounds like a substandard router unable to cope with all connections, but I could be off.
Could also be caused by some other application packet sniffing (Google Desktop?).
