Tried this tonight on 2 Solo2s.
One has a MAC address, the other doesn't.
On ViX (Solo2) you can trick a MAC address after a flash, on OpenPli, you can't.
The box that has a MAC address works perfectly fine on both images, the box with no MAC address works fine when you trick ViX to use a fake MAC address, can't be done on OpenPLI as it doesn't have a MAC address plugin by default.
Some routers also crap out when a box with no MAC address tries to connect.