Not clear if your Innuous is connected to back to your core switch / router via (non-powerline) Ethernet, but that’s the first place I’d look if there’s any way you can try it. Running a long ethernet cable through the house over floors and through doors and down stairs etc is no fun, but if you do that experiment and it results in no drop-outs, you’ve found your culprit and you can deal with it however you want.
For instance read this thread - this person was wiring endpoints, not core (which was already done):