The 4.0 is running CM11 (cm-11-20140323-UNOFFICIAL-ypg1) with the Impulse r6 kernel.
One 5.0 is running CM11 (cm-11-20140113-UNOFFICIAL-venturi) with the Jan12 US kernel.
The other 5.0 is running CM10.2 (cm-10.2-20131105-UNOFFICIAL-venturi) with the Nov4 US kernel.
I poked around and discovered that they all have the same MAC address, and the two 5.0 players have the same serial number. I tried various MAC spoofers and changers without any success. I tried wiping and reflashing one of the 5.0 and the 4.0, but the addresses did not change.
Does anybody have any suggestions on how to change the MAC addresses?