Why do 2 wired connections show in Network Connections when I only have one physical connection?

I am using Lubuntu 18.04.

Network connections shows 2 wired connections, and both have been used within the last 15 minutes, even though I am connected to Wifi. Please can you explain why, and if this is normal.

I am asking this question in the broader context of trying to find out why my Wifi keeps dropping randomly. There are several unresolved bug reports describing this behaviour, but nobody has solved the problem. Could these wired connections have anything to do with the wifi drops ?

Link to pastebin with some system diagnostic information