I think he means wifi is the problem - that network connections are fickle unless you're hard wired.

The PR-SC885 is very unpleasant to update firmware on. I did it once (without a trip to the shop) but it was a huge hassle to do. It was one of the biggest strikes against the unit, in my opinion, and a pretty bad black eye for Onkyo. If I had to pick a single method for firmware updating, I'd prefer USB over Ethernet. That's because anybody can download files onto a USB stick and - with at most the investment in a $10 USB stick. Not everyone will connect an Ethernet cable to their gear, but a product that relies on Ethernet only for their firmware updates (like the Marantz AV7005) will force them to either move the unit or run a really long cable temporarily for the purposes of doing the update. Of course, having both available works, too (as OPPO has been doing with their Blu-ray players).