Internet connection stable at once unstable?

I play fortnite and have a 100k line speed test is always good always have a 20ping - 35 but suddenly in the middle of the game is my ping at 100 and after 15 seconds or so back down would be helpful if you would help me

Probably your PC downloads Windows updates in the background.

Can you turn this off?

Settings> Network and Internet> Change connection properties> Set as a timed connection

OK, thanks for the answer, try it tomorrow 👍

Hello still have the same problem