This is the 443719…... number which is on the underside of the Network OWL. This unique reference number is also available through the web dashboard (Devices menu / Network OWL).
The MAC ID is actually a hexadecimal number and may contain digits 0-9 and letters a-f.
The MAC ID is also the MAC Address of the Network OWL which is used by your network to uniquely identify attached devices.
Don't enter this the correct way, i.e. a colon between each pair of digits. Enter the entire number with no punctuation.
my mac id has 10 numbers not 9