My new leased E3200 has an interesting quirk not shared by my two other E3200s.
The LED ring around the WPS button remains brightly illuminated even after the LEDs on the rear of the unit have extinguished.
Now the ring on each of the other two extenders does dim when the rear LEDs extinguish.
All three extenders are updated.
The only difference between the new extender and the older ones is the hardware version. The new extender is hardware 1103.
I believe that the older extenders are either 1102 or 1101, but, I'm too lazy to go downstairs or log into my computer to verify. 😴