Why don't you try telling us what you have been typing to get ping working, what messages you have been seeing, etc? Then we won't have to do all that hard mind-reading stuff.
To issue a control-break from the keyboard, like when you want to pause a continuous ping, started with ping -t, to see the statistics, you don't type "control-break". You hold down the Ctrl key and while you are holding it down, you press the Break key.
To stop it altogether you hold down Ctrl and press C.