Few days back I changed motherboard and to continue using Internet I changed the MAC ID of NIC on new board with the values from old NIC. Then yesterday I called the customer care (ISP) to register new MAC ID and delete the old one which they did.
But now the problem is when I cleared the MAC ID it is not obtaining its default MAC ID, but instead still using the MAC ID of old NIC.
How can I reset the MAC ID? I’ve already tried BIOS resetting.