Oscillating ping wifi macbook pro retina late 2013

[joaolmendes]

I am having trouble with my macbook pro retina late 2013 where the ping is oscillating so much. I already tried to turn off the firewall and last month I went to a genius bar and they said everything is normal.
I tried in another macbook pro retina late 2013 in the same network and its ping is normal, so it's not a router problem.

Anyone can help me please?

Thank you so much

 

[simonsi]

What are you doing at the time (or more to the point what network activity is your Mac doing), ping tests get de-prioritised by everything to prioritise "normal" traffic - so does your normal traffic have an actual problem? If not and you are moving data, especially anything large, up or down - your ping will vary.