Reason for inconsistent ping?

[Heisenburger]

Hi! I'm pretty new to PC gaming, and I've recently started playing online games such  as KF2, and CSGO. I've recently noticed that my ping is SUPER inconsistent, with some days laying in the 40-80 area, but other days jumping to 350 to 450. This has become really noticeable lately, and I was wondering if there's any way I could fix this, or at least figure out what the reason is. I use an ethernet connection btw.

[Vercii]

Other applications running in the background that's using a large load of the internet? Maybe downloading stuff in the background? Others on it streaming Netflix, Hulu, etc.? 

[Heisenburger]

Just now, Vercii said:

Other applications running in the background that's using a large load of the internet? Maybe downloading stuff in the background? Others on it streaming Netflix, Hulu, etc.? 

My brothers usually watch netflix, but I haven't noticed if it happpens when they're on it. I'll keep an eye out for that, thanks!

[Josephdalepi]

28 minutes ago, Heisenburger said:

My brothers usually watch netflix, but I haven't noticed if it happpens when they're on it. I'll keep an eye out for that, thanks!

what times of day do you notice the ping go up?

may be everyone gets online at that time