After much research, I found people have been complaining about this (Windows 8, too) since 2013 and as recently as December 2016.
The number of threads is huge, including from MS itself, and I don't believe any of the reasons for this stuff happening or most of the suggested solutions.
Most suggestions are that machines are picking up nearby devices or drive-by's. I don't believe that explanation because most of the specific device names are the same in many cases with people spread out all over the USA and beyond. Here's just one example of somebody else that saw "full-ford":
http://www.overclock.net/t/1583033/strange-unknown-devices-on-my-network
I've noticed the stuff that shows up has a MAC address, but no IP. In most cases the devices disappear after a few seconds.
Another strange thing is how some of the devices are associated with Amazon or Amazon protocols. I do not think this phenomenon is isolated to individuals' locations or wireless devices because of the common device names involved.
You Webroot folks are the security experts; that's why I wrote this here. Here are some screen shots for your enjoyment. The devices that do not belong are DL701Q; MaxGuava; angler; full-giza and full-ford:
