I'm also experiencing the same issues as everyone else here. While playing Battlefield 1 and V through the EA App, my PC's internet connection gets completely bricked after just a couple minutes of regular gameplay each time. It isn't even a standard server disconnect, the WiFi itself completely dies and requires a hard reset.
This only happens to the games I'm forced to play through the EA App. BF6, which can run on Steam without the EA App, works just fine on my PC. So does every other game I own, and every other device in the house. I have been troubleshooting for days. I've tried every potential solution I know to try, and have checked everything I know to check. Nothing has given any clues as to what is causing this specifically. I even dusted off my old laptop and installed BF1 there to check it, and it worked without issue. This indicates it isn't even my home WiFi itself causing the problem, but rather some sort of obscure issue with how the EA App works on my PC specifically. I was excited to pick up BF1 and BFV through the current deep sale on Steam, but they're entirely non-functional right now. At least I'm not the only one experiencing this.
My specs (all drivers and everything else are the latest versions):
