Internet briefly dropping once to twice a day?

Hello - 

Long time xfinity customer here.  Things have worked great, until Monday of this week.  Randomly, our houses internet will completely drop away.  Wifi network disappears and wired connections state no internet available.  It will usually last about 1 to 2 minutes, then it pops back up and everything works fine.  By the time I've opened the xfinity app, it's no help as it says everything is working great.

For reference, when things are working it goes great.  We're getting plenty of speed (typically around 1 gb).  

Wondering if this could mean if my router is starting to fail?  It's leased from xfinity.  Has anyone experienced this?