Tryndamere able to attack Gang Plank Barrels to stack fury. Ping fluctuations through the roof.

after patching 5.16 i was able to attack our GangPlank barrels to stack furry In ARAM. My ping would fluctuate from 80-280 at random moments, no other applications where open. Not sure if any other Mac users have experienced this. My internet isn't the best but, my ping has never been this unstable. Im on a Mac 2.4 GHz Intel Core 2 Duo 4 GB 1067 MHz DDR3 NVIDIA GeForce 320M 256 MB