Network devices are "unknown"

In the network tab, all of my devices are listed as "Unknown Ethernet"
What could be causing this?

Please email our helpdesk some screenshots and more information so we can investigate. For example your OS version and how your network is setup would be great. Thanks!

It is not letting me upload an image because I am a new user.
Windows 8.1

Network is a DSL Router configured as a modem
A Netgear router running DD-WRT handling all “router” functionality.

Wired/wireless devices are connected to the Netgear router.

Reinstalling the program has fixed this issue.
I think it was my own fault because I deleted the database to reset it, which apparently contained more than just the history of apps in the firewall.