I'd be curious about the answer to Dezel's question as well.
Also, what kind of ping are you getting?
Are you concerned about ping within your own devices, or ping to an external site (like Google.com, for example)?
Since you are asking about 'ping', not bandwidth, I'll take a shot with the assumption that you have bad ping to the internet.
I would try turning off power to both your router and your internet modem device. Wait at least 30 seconds and turn on again. Re-test your ping. Sometimes the router and/or modem get into funny state with routing and that affects ping.
If you still have terrible ping after that, I would connect directly to the modem and test again to eliminate the router as the culprit.
If still the same...