|You DO NOT have to purchase a nic to change your mac address. That is outdated knowledge. In a nics advanced properties you have "locally administered address". This is where you can assign a mac address.|
mrdreamers you write
"when i try to change my mac address with any software it works but bout 10 15 seconds later the internet cuts off what gives?? "
Well of course it goes out. Completely expected.
"The modem should see the new NIC (and MAC address) and assign it an IP address allowing access to the internet."
is an incorrect statement due to a missing piece of information.
ISP's REGISTER YOUR MAC ADDRESS when you make the first connection [usually when the isp tech is onsite]
They see a different mac, you don't get a ip or access.
Question that was never asked is why are you doing this? This will accomplish nothing.