Ex2Ultra interfering with home wifi?

New to NAS altogether. Set up Ex2Ultra about 2 weeks ago. Plugged it in the home router. Immediately, the wifi started acting up. It’s harder to connect to it, you connect but it doesn’t stream well, stuff like that. When I hibernated the Ultra, the wifi worked as before, streaming fine. Are there specific settings that avoid that problem? Does backing up the computer (Time Machine) cause that and will it always hog up the wifi like that?

Sounds like you’re on an Apple system, in which case I can’t help you. You may have an IP address conflict or, as you say, the device is syncing and bogging down your network (normal).