[Jotnar]

Sometimes your (non-wireless) NIC ends up with a MAC address of 00:00:00:00:00:00 / FF:FF:FF:FF:FF:FF / 04:4B:80:80:80:03 after a BIOS update.
This effectively makes your NIC useless until you can fix it. On some boards this will cause a 'MAC address are invalid in both CMOS and Flash' error.

Here's how to fix this problem (your MAC = XXXXXXXXXXXX):

Broadcom B44xx

B44DIAG.EXE -c 0 -e b44kia -mac XXXXXXXXXXXX

Broadcom B57xx

B57DIAG.EXE -c 0 -e b57kia -mac XXXXXXXXXXXX

B57UDIAG.EXE -c 0 -e b57udg -mac XXXXXXXXXXXX

Broadcom NetXtreme II

XDIAG.EXE -c 0 -mac XXXXXXXXXXXX

Broadcom Everest

EDIAG.EXE -c 0 -mac XXXXXXXXXXXX

Intel

EEUPDATE.EXE /NIC=1 /MAC=XXXXXXXXXXXX

ERUPDATE.EXE -NIC=1 -MAC=XXXXXXXXXXXX

JMicron JMC25X/26X

EEMAC.EXE XXXXXXXXXXXX

Marvell Yukon

YUKONVPD.EXE -M XXXXXXXXXXXX

nVidia

NVFLSHSC.EXE -m XXXXXXXXXXXX

NVFLSHSC.EXE -macn XXXXXXXXXXXX (Where 'n' is NIC number 1-8)

AWDFLASH.EXE BIOS.BIN /py/sn/cc/cd/cp/nvmac:XXXXXXXXXXXX/wb/e

Realtek RTL8019

PG8019.EXE CFG_FILE.CFG

In CFG_FILE edit the following with your own MAC:
NodeID   = XX XX XX XX XX XX

Realtek RTL8029

PG8029.EXE CFG_FILE.CFG

In CFG_FILE edit the following with your own MAC:
NodeID   = XX XX XX XX XX XX

Realtek RTL8101E/RTL8102E/RTL8103E Family PCI-E Fast Ethernet

PG8136.EXE /nodeid XXXXXXXXXXXX

PG8136.EXE /efuse /nodeid XXXXXXXXXXXX

Realtek RTL8104E

PG8137.EXE /nodeid XXXXXXXXXXXX

Realtek RTL8139/RTL810X Family Fast Ethernet

PG8139.EXE /nodeid XXXXXXXXXXXX

Realtek RTL8168 Family Ethernet Family

PG8168.EXE /nodeid XXXXXXXXXXXX

PG8168.EXE /efuse /nodeid XXXXXXXXXXXX

Realtek RTL8169/8110 Family

PG8169.EXE /nodeid XXXXXXXXXXXX

Realtek RTL8136/RTL8168/RTL8169 Family

RTNICPG.EXE /nodeid XXXXXXXXXXXX

SiS 190/191

EE19X.EXE EE19X.DAT

Open EE19X.DAT in notepad, line 4, 5, 6
     e000
     0906     ===> 00 E0 06 09 00 01
     0100

SiS 900

EE.EXE EE

Open EE with notepad and you will find 
0b00    ; Mac addr [2][1]
126a    ; Mac addr [4][3]
5634    ; Mac addr [6][5]

Replace them with your MAC address.
For example: 000b6a67890a
0b00    ; Mac addr [2][1]
676a    ; Mac addr [4][3]
0a89    ; Mac addr [6][5]

ULi M5261/M5263

PGSROM.EXE /i SROM.DAT

In SROM.DAT change the following to your MAC:
NodeAddress = XX XX XX XX XX XX

Via

EEPROM.EXE -km# XXXXXXXXXXXX (Where '#' is the #th NIC)

EEPROM32.EXE -km# XXXXXXXXXXXX (Where '#' is the #th NIC)

Some motherboard manufacturers provide utilities to fix the problem as well:

ASRock*

MAC.EXE c XXXXXXXXXXXX

MSI

MM_LAN.BAT (Calls MSIMAC.EXE)

*If you have an ASRock board with this issue, file a support ticket with them and they'll send you the tool to fix this problem.



Depending on your BIOS setup (if the MAC is in the bootblock) you might be able to fix the problem with the BIOS update tools:

AMI

AFUDOS.EXE /M XXXXXXXXXXXX

Pegatron (!!WARNING!! Does not check before it flashes. Only use if you're POSITIVE your BIOS supports it)

PFUDOS.EXE /M XXXXXXXXXXXX

Phoenix

SMBCFG.EXE /MAC # XX XX XX XX XX XX (Where '#' is the NIC number 1,2,3...)

Cheers

This post has been edited by Jotnar: 10 September 2011 - 10:48 PM

[pcuser]

That was an amazing post, thank you Jotnar!

[AncientMaster]

2 ways for doing this in LINUX:

ifconfig ethYY hw ether XX:XX:XX:XX:XX:XX

or...

macchanger --mac=XX:XX:XX:XX:XX:XX ethYY


where XX.X is the MAC address you desire to define/reset
and YY is the device number of the NIC

Losing the MAC address can also occur if your CMOS battery is weak or dead. I recently replaced one on a DFI motherboard whose onboard NIC reported a MAC address of FF:FF:FF:FF:FF:FF

This post has been edited by AncientMaster: 30 December 2011 - 05:55 AM

[tehparan0id]

Jotnar, on 10 September 2011 - 10:23 PM, said:

Sometimes your (non-wireless) NIC ends up with a MAC address of 00:00:00:00:00:00 / FF:FF:FF:FF:FF:FF / 04:4B:80:80:80:03 after a BIOS update.
This effectively makes your NIC useless until you can fix it. On some boards this will cause a 'MAC address are invalid in both CMOS and Flash' error.

Realtek RTL8168 Family Ethernet Family

PG8168.EXE /nodeid XXXXXXXXXXXX

PG8168.EXE /efuse /nodeid XXXXXXXXXXXX

Realtek RTL8169/8110 Family

PG8169.EXE /nodeid XXXXXXXXXXXX

Realtek RTL8136/RTL8168/RTL8169 Family

RTNICPG.EXE /nodeid XXXXXXXXXXXX

Hello..

Does anyone have the rtnicpg.exe utility? I've looked all over the internet and just cannot seem to find it..

Appreciate any assistance anyone can provide..

This post has been edited by tehparan0id: 02 January 2012 - 06:14 AM

[rdsok]

tehparan0id, on 02 January 2012 - 05:13 AM, said:

Hello..

Does anyone have the rtnicpg.exe utility? I've looked all over the internet and just cannot seem to find it..

Appreciate any assistance anyone can provide..

Realtek's download page for NIC device drivers and diagnostic's utils is found here http://www.realtek.c...&Level=3&Conn=2 ... at the time I checked, the FTP site for the diag utils were all down.

Please note you probably have an alternate source available to you since I suspect your device is actually made by another company and just contains the Realtek chip on it... If it is built into your system's motherboard, go to their website to see if the diag utils are available for download there... same holds true for a stand-alone network card.

[tehparan0id]

rdsok, on 02 January 2012 - 12:47 PM, said:

tehparan0id, on 02 January 2012 - 05:13 AM, said:

Hello..

Does anyone have the rtnicpg.exe utility? I've looked all over the internet and just cannot seem to find it..

Appreciate any assistance anyone can provide..

Realtek's download page for NIC device drivers and diagnostic's utils is found here http://www.realtek.c...&Level=3&Conn=2 ... at the time I checked, the FTP site for the diag utils were all down.

Please note you probably have an alternate source available to you since I suspect your device is actually made by another company and just contains the Realtek chip on it... If it is built into your system's motherboard, go to their website to see if the diag utils are available for download there... same holds true for a stand-alone network card.

Appreciate the quick response. I've found the diag utilities but have not yet found the rtnicpg.exe utility. Also, I keep finding all of these old versions of pg8168 but.. they don't.. work so.. I'm back to searching for the rtnicpg.exe.

[rdsok]

If you are getting the proper set of diag utils for the make/model of network card you have, it should contain the util that can set the MAC address for it. Read any readme.txt or similar text files in the one ( ones ) you have downloaded to ensure which one is included... and verify that you have the proper set of utils for your specific card, you may have to get them direct from the manufacturer as I mentioned.