I have a high ping that is always between 300-400 and sometimes it goes up to 1000+ and then my internet crashes and it goes down back to 300-400, sometimes there are rare times when it is 90ms but it is for maybe an half hour, i am using a cable and i have a gaming pc, i'm sure it isn't the pc hardware because it is a kind of a new pc, and my previous pc had the same problem, and if you need this information it is in all games, so the server location doesn't matter
UPDATE: I've checked another pc in this household, and and ping is the same
UPDATE: I've checked another pc in this household, and and ping is the same