Our superhub 3 randomly drops the ethernet connection to all pc's connected on the network (we are on Vivid 300), while wifi ALWAYS remains connected. A reset or restarting the router seems to sort it out for an hour or so then all the connections drop. As i work from home this is hugely frustrating to me. I have tried the usual tests and from inside the router settings etc etc but nothing is working and the problem remains.
Its getting really bad, the wifi has no issues at all, and speeds are great - its just all ethernet connections dropping. I'm getting convinced it's a fault with the router as hardware reset doesnt fix it either.