The problem is that when bfgminer starts, I would get
where 'x' is some random port (it tends to be in the range 1-15, but will sometimes pick ports in the higher range).
The port will then light solid green and will not hash.
Restarting bfgminer will yield another "failed" port. Sometimes all ports will get recognised and will not light green, but then all miners will blink a little and one port will light solid green again. I have double-checked and have enough power for all miners. I also tried with a smaller subset.
My request: could you for ports that give that "privileges" error, make a retry at a later point. It seems that time-out for failure is too short or something...