That is just the point.

Ever since my upgrades, the "physical address" - as given by the two different computers when running "ipconfig /all" under a 
command prompt - are the same.  Somehow the bios seem to be taking what I assume is burnt into the network controller's circuitry 
and changing it to the same physical address.  Either that or they are actually changing the circuitry.

In either case, I have assigned in the router two different DHCP numbers to two different MAC addresses.  To the old MAC address is 
assigned the number 192.168.0.150 and to the new "MAC address" is assigned 192.168.0.151.  The number that gets assigned is the 
latter!  It seems to me that the router thinks that my new physical address is the actual MAC address.

I am still wondering what is going on here.  ?  I thought that MAC addresses were "supposed" to be unique and permanent.

Dean

----- Original Message ----- 
From: "Dave & Patt Nager" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Saturday, April 12, 2008 4:03 PM
Subject: Re: [PCBUILD] MAC address corrupted? Follow-up


MAC Addresses are unique to each Network Device.

-------Original Message-------

From: Dean Kukral
Date: 4/12/2008 2:26:38 PM
To: [log in to unmask]
Subject: Re: [PCBUILD] MAC address corrupted? Follow-up

I just discovered that I was wrong.  Each of our computers now has new MAC
addresses, which are the same on all four network
controllers except that my two end with a 03 and 04 and her two end with a
03 and a 04, so we should be able to have unique MAC
addresses - at least as far as our lan is concerned.  One of us will be an
03 and the other will be an 04.  :)


----- Original Message -----
From: "Dean Kukral" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Saturday, April 12, 2008 12:59 PM
Subject: [PCBUILD] MAC address corrupted?


My wife and I both have ASUS Striker II Formula motherboards - which I do
NOT recommend to anybody.

They have been buggy from the start, so when a new BIOS (drivers, too) came
out, I was eager to load the BIOS and drivers.

Now, however, I find that I have the same MAC address on my motherboard's
network controller (I only checked one) and on both my
wife's network controllers.

Does this make sense to anyone?

So, I loaded the old BIOS to my computer, but I still have the same MAC
address on the network controller!!!

Could this cause networking conflicts?  Both computers seem to be assigned
different DHCP sets.  However, my wife's computer has
downloaded multiple copies of emails.

Could this be malware related ( I mean malware other than ASUS's BIOS!! )?

Do you suppose that a simple network card will solve this problem for us?  I
suppose that the actual MAC addresses are irrelevant,
since the unique DHCP addresses are what is important?

(I wonder if people all over the world that used these new BIOS are now
saddled with the same MAC address.)

Could the nForce drivers for the 780i chip be causing this, so that going to
the old drivers would help?  (I will probably try
that.)

As you can see, I am a bit stymied by all this.

Dean Kukral
 

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