New "Apple Device" connection in the middle of the night

Hello, 

I woke up to a notification that a new device named "Apple Device" connected in the middle of the night. When I tapped the notification the Xfinity app crashed.  If I login to the app and manually look it does show up there. 

It has a MAC that matches Apple vendor lookup. It has an IP6 IP Address, but strangely no IP4 was ever listed it seems. The dB for the wifi connection is "undefined dBm" as well. 

Thoughts on if this device really ever connected? Some screenshots below:

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