I've checked another one of my 3912 which is connected to my lab V2110 and it looks like because "reasonX" 00000 is added to the SN# that is printed on the AP and box.
It would make sense to either print the correct SN# on the box/AP or change the Defender app to support the short SN# that is visible on the box/AP.
Best answer by Rodney Lacroix
This will be addressed in upcoming revisions of Defender. The new requirement for the serial number of Defender AP devices will not require you to add the trailing 0s.View original