Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.

thebitguru

macrumors member
Original poster
Nov 15, 2016
42
13
Hi,

I have a 15" 2018 MacBook Pro running the latest MacOS 10.14.5. When I am on a gigabit fiber connection, after a fresh boot, I get around 517Mbps/352Mbps and 4 ms ping. After using the computer for a few hours, if I run the speed test again the speeds go down to 70/70 with the same 4ms ping. Reconnecting to the wifi does not change anything, but if I restart then the speeds are restored. I have confirmed that there are no programs running when I do the speed test after keeping the computer up for a few hours.

Any ideas on why the internet slows down after keeping the computer on for a few hours and why restarting fixes it?

Thanks!
 
Register on MacRumors! This sidebar will go away, and you'll see fewer ads.