LED seems to be working, I say "seems" because I am sitting next to the device, so obviously all 4 LED come on as it is a strong signal from my phone. But they go off again when I turn off my phone.
Took a little while to test, because I had to do a full reset to get the default info into /etc/config/system. And that ff-ing auto-rollback is really not working when you have to change IP and juggle cables to move to another IP subnet.