no, the MAC is the device identity number (psychical address)
you do not update that from computer to TV
You get a MAC that you need linked to your code and link that to your code thru server website.
Now if you are using a Avov or Mag or Dreamlink T1 then the MAC is specific for that receiver, look on the bottom of receiver.
If using a kodi app like Stalker then the MAC is generated by you. Then linked to donation or route number