|I'm thinking you mean "SOHO router" when you say "hub" If I'm correct, you should be able to connect to the management interface of the router and look for a list of connected devices. Also, if the device is not presently connected, you could check the logs to see what has connected. Those logs would also likely list any forwarded connections from external sites if there are indeed any.|
If that should ever pop up again, compare against the IP address of your PC or against the DHCP scope of the router. If it's within the same subnet then it is indeed a LAN device and not someone connecting from an external source.
I'm not familiar enough with Windows 10 to know what you're talking about other than I know what a tile is. What application popped up within the tile to tell you about the connection is more what I was asking about.
It matters not how straight the gate,
How charged with punishments the scroll,
I am the master of my fate;
I am the captain of my soul.