Hi, my FIRST time on the forum.

Having problems connecting to internet provider. They have said that they cannoy allocate IPV4 Ip address to allow my connection because the physical address on my COMPUTER is already being used/possibly cloned?

For me to have a connection they advise that I need a new/unique physical address.

Can any one tell me how this can be done?

Can I do it myself or does the company who made my computer have to do it?

Any advice will be greatly appreciated.

ChrisYou can use macshift to change your preceived MAC address. http://devices.natetrue.com/macshift/1. While I appreciate TheEmperor's advice (and especially the link) to change the "perceived" MAC address, it is problematic.

Change it to what? If you just make one up, you could be passing your problem on to someone else. If you have a MAC address that you won't be using, no problem. Perhaps you could try the MAC address of an old NIC card that you know shouldn't be used (because it's sitting on your shelf).

The MAC address is supposed to be unique throughout the WORLD but sometimes manufacturers (cheap and/or lazy) or users clone them. If you have a reputable brand NAME computer or Network Interface Card (NIC) and feel you are the legitimate owner of that MAC address you could suggest the Internet Service Provider (ISP) ask the "other" customer to provide a "new" MAC. Or ask the ISP what MAC they'd like you to use. Or whether they care if you make one up. They'll probably be no help at all. (Personally I think it's more their problem than yours... What do you care what MAC address you use?)

2. You didn't say whether your NIC is integrated onto your motherboard or a separate expansion card. You could purchase and install a new NIC card (or just use its MAC address).

3. A better solution would be to purchase a router/switch to place between your cable/DSL modem and your PC. Then you would provide the "WAN" MAC address on that device to the ISP. This would provide more protection for your PC because it is not directly exposed to the internet and would allow you to add multiple computers with internet access.Previous post contains all of the things I would have tried before coming on to a forum to ask about MAC address changing. Silly me, I made the assumption that the original poster would have either tried those things or dismissed them as possibilities for one reason or another before asking here.
You are indeed correct sir.

Try all of the things mentioned in dahlarbear's post BEFORE you go monkeying with your MAC address.