I have recently noticed that my router, Linksys EA6700, is broadcasting three different signals, where I am only expecting two.
When I say recently, I mean I have used the android Wifi Analyzer app by farproc in the past, and never seen the new ? network before.

5GHz Named correctly with a mac of c8:d7:19:55:6c:cc
2.4GHz Named correctly with a mac of c8:d7:19:55:6c:cb
2.4Ghz Called '?' ca:d7:19:55:6c:cd

It is a near duplicate, but not quite.

Can someone please explain to me why the mac that identifies the manufacturer is different? Ie starts with ca:d7:19 instead of c8:d7:19. Why is it even here in the first place?

I know it is my router, as any changes to the 2.4GHz network is mirrored by the ? network.

The router is a Linksys EA6700.


Thanks