This has already been asked, I'm sure, and the information I've found online seems to say that it does, but does a primary decoW6000 need to be hardwired to the router?

 It has worked in the past completely wirelessly, but it has crashed so many times that I've just run the primary deco off Ethernet. After crashing on Wi-Fi, the decos need to be reset and the entire system needs to be reconstructed.

 It might be an issue with my actual router, but I haven't had the time to go in and fix it.