SCCM 2012 Losing Wired Mac Address of Laptops

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  • I haven't experienced this myself but would start looking at duplicate resources (with different resource IDs) in your environment. One thing you also could check is the resource explorer history on the device to make sure that that resource have had the MAC address. In other words to rule out different resources. If you right click on a device and chose start you'll find "Resource explorer".

    By right clicking in the device collection view you could also choose to add the resource id column.

    If your computer BIOS or an application "hides" the wired network card when you connect to a wireless network then SCCM agent would report that the computer no longer has that MAC address, but I would say that this scenario is more common with wireless network cards.

    Tim Nilimaa | Blog: | Twitter: @timnilimaa

    Wednesday, October 16, 2013 11:37 AM
  • No luck with the duplicate resources, all devices have unique ID's....

    Resource explorer does contain both MAC addresses, device properties only shows the wireless MAC.

    With only the wireless MAC in properties I cannot clear the previous PXE advertisement. After deleting and re-adding the laptop with the wired MAC it is still holding a record of the last PXE Deployment (once deleted the system will PXE boot fine). 

    I have an additional thread going at the link below.

    Any help is appreciated

    Wednesday, October 16, 2013 2:34 PM
  • In resource explorer, do you see both mac addresses in the "current" view or in history view?

    Tim Nilimaa | Blog: | Twitter: @timnilimaa

    Thursday, October 17, 2013 6:13 AM
  • I'm in the same boat as JLCARON401. Laptop devices in SCCM seem to forget the MAC address of the wired interface.

    Tim, they show up in the Hardware History section of Resource Explorer, but not in the current view. You can see the device listed, but the MAC field is empty.

    I just put this together to grab data from the database directly to confirm that the data exists.

    	[CM_PEN].[dbo].[Netcard_HIST] netcard
    	[CM_PEN].[dbo].[Computer_System_DATA] computer
    	netcard.MachineID = computer.MachineID
    	computer.Name00 like 'SMS-LIB-MD%'
    	netcard.MACAddress00 IS NOT NULL
    	netcard.AdapterType00 like '%802.3%'

    Not sure where to go with this next. I'm looking into it because we're having problems with laptops that charge in a cart are missing updates. I've rigged up a cart with power and a switch so each laptop can be powered up (WOL) during the night to have all the outstanding deployments installed.

    • Edited by nf_ Monday, March 23, 2015 4:34 PM spelling and grammar
    Wednesday, March 18, 2015 11:54 PM
  • This has been an issue in SCCM since the dawn of time. Is there anyone out there whos has a good fix for this? It's really giving us a headache when trying to cenvert to UEFi when deploying windows 10, as the PXE boot part of the split task sequences wont work :(
    Wednesday, April 06, 2016 9:30 AM
  • Never seen that happening, too. What does resource explorer display in such a case?

    Torsten Meringer |

    Wednesday, April 06, 2016 10:49 AM
  • Still never found a resolution to this - we delete the devices then re-import with the wired MAC......
    Thursday, April 07, 2016 2:48 PM