@Tony I'll give it a shot, but they ignored me when they asked me to DM them with details on Twitter, so I'm not particularly confident. ETA: And I got a reply just after I hit enter.

Sorry for the thread necromancy, but I wanted to note that I'm having a similar problem to OP. I don't have Smart Connect turned on, because I like to steer certain devices to the 2.4 GHz network...

And now I'm just going to bail on this piece of garbage router. Today, my printers went "offline" with the incomplete MAC symptom, even though I haven't allowed a USB drive within 30' of it. I...

@IrvSp I'm just going to bail on using the USB storage feature. It wasn't anything that I had a particular use in mind for, other than Time Machine, and it's probably going to be easier and less...

@IrvSp Printing is definitely a symptom I saw as well, and it manifested itself within a few minutes of hooking up the drive and turning on sharing. The thing is, I never even got to the point of...

I believe I've found the issue - if I connect a USB storage device, it breaks stuff. The issue initially manifested itself not long after I connected one, and resolved itself when I disconnected it,...