Man in the Middle Attack?

Hello all:

For the last several weeks, I've suspected that my router was hacked. So much so, I used what little money I had to buy a bridged router running DD-WRT to put my network on a VPN. Unfortunately, the processor was too slow. I removed it. I constantly get texts messages saying that my Xfi router details have changed or providing the details when I did not request them, and my router constantly and suddenly disconnects for 1-5 minutes, only to reappear.

I use Fing to monitor my network. I did a wireless scan two days ago and noticed that my Xfi router was broadcasting my SSID in the 5 Ghz band twice within 1-5 decibals of each other. One was marked protected, the other "open" and "unprotected." It looks like a MITM attack. Though, I've reset the modem/router combo twice and it always reappears. 

Does anyone else use Fing? Do you seee something similar when you run the Wi-Fi Scanner tool? (On MacOS, Tools > Wi-Fi Scanner.) Or am I just the subject of a MITM attack?

The second 5Ghz router is listed with a Mac Address of 00:00:00:00:00 and with a mfg. of Xerox, which doesn't mean anything since Mac Addresses are spoofed (I have all mine spoofed).