Having zero issues here with online games or anything related to win 10. I suggest the following:
1. Turn on all attached devices like cameras, printers, scanners, and whatever. Also attach and controllers, headsets and similar things. Reboot with everything turned on and attached. This will let windows discover everything you have and check drivers.
2. Make sure windows is 100% updated via windows update. Reboot after each one.
3. Update the drivers for all your devices by going to the manufacturers site, do not use any software that says it will update things for you. Reboot after each one.
4. Check device manager for any devices that have a "?" or a "!" next to them. Resolve any issues if there are any.
Depending on what games are...