I've paused windows updates and I use ethernet cable, still I face loss, maybe it's due to internet instability, I use BSNL fibre.Mostly it is dependent on internet but sometimes there could be other causes :-
- Windows update downloading in background.
- Someone else is using internet heavily while you are gaming.
- Using wireless internet instead of ethernet.
- Your devices doing backups (mostly at night) when they are plugged in and connected to internet.
I don't think it is same as Apex, not sure why but apex doesn't work with LAN and will work with mobile dataTry mobile data with USB tethering. If its your ISP (which is what happens to me on some games like APEX), that will fix it.