Computer has incredibly high ping spikes every minute or so + seemingly any time a multiplayer game is launched.

I upgraded my PC for two reasons. First, the old one was having very bad network issues and was relatively old. Second, to not lose a frame in Blender under any circumstance. So three reasons.

Despite the significant upgrade Blender performance is exactly the same.

The network issues have come back, and I can't sneed.

I woke up today and my computer has identical issues to the one it replaced. No other computer in my house has network issues. My shitty 10+ year old laptop does not have network issues. That laptop's wifi card does not work, so it has a USB adapter for that. If I plug that adapter into my PC, it has connectivity issues. Neither of my LAN ports work. This is a 100% brand new PC.

I have updated every driver. I have updated the BIOS. I have set to metered connection. I have disabled searching for other networks once I am connected. I have run antivirus scans. I have run one program at a time to see if one was causing issues.

I cannot figure out what is wrong. When I get back to the house tonight I'm reinstalling windows.

Total software developer death.

If I had unlimited resources I would have the microsoft HQ's parkinglot firebombed until connection issues improved. I don't even need the internet to get my work done this weekend, I just wanted to play Hunt: Showdown and get the cool skin.

The entirety of my day has been spent trying to figure out why my ping spikes to 2000 every minute or so. The only breaks were eating or when I went on a four hour hike to scream at god.

If you have any guesses as to why this is happening, let me know.