WDSServer out of memory when deploying Dell Latitude 5510

Peter Szunomar 1 Reputation point
2021-05-15T14:28:14.157+00:00

Hi All,

I have a Windows Deployment scenario at a school, runing since 2017. Redeploys nearly 100 PC weekly, so it worked cool till nowadays. The Server is a Hyper-V VM, a DC+DNS+DHCP+WDS combo with 24GB RAM limit. All the deployments are running with UEFIx64 mode.
We received 30pcs Dell Latitude 5510 new notebook. When I plug the 30 notebook into LAN and stat a PXE boot to deploy Win10, the notebooks are stacked at the firs TFTP load phase (after selecting PXE boot, but before selecting bootimage) and the Server starting to eat all of possible RAM. After 100% (yes, all the 24GB) the server will be down. at the TaskManager I don't see, who takes the memory. It seems, it is only allocated, but not really used.
If I disconnect the notebooks before the server freezes, the used memory amount will be reduced to any 85% and on the TaskManager the used memory of the WDSServer starting to increase. It seems, the huge memory is allocated to it, but not used. after disconnecting the notebooks, the allocated memory will be used (a deployment of other 20 desktopPC running parallel).
So the server can deploy 100 different PC with only 5GB RAM, but can't deploy more than 10 Latitude notebook with 24GB RAM.
What the hell is it, and what can I do with it?

Windows Server Setup
Windows Server Setup
Windows Server: A family of Microsoft server operating systems that support enterprise-level management, data storage, applications, and communications.Setup: The procedures involved in preparing a software program or application to operate within a computer or mobile device.
241 questions

2 answers

Sort by: Most helpful
Most helpful Newest Oldest
  1. Jenny Feng 14,076 Reputation points
    2021-05-17T02:48:55.11+00:00

    @Peter Szunomar
    Hi,
    You could try the following method:
    Go into WDS, expand the servers. Right click on the server and select Properties. On the TFTP tab uncheck "Enable Variable Windows Extension".
    Hope above information can help you.

    ============================================

    If the Answer is helpful, please click "Accept Answer" and upvote it.
    Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.

    0 comments
  2. Chris Bemodi 1 Reputation point
    2022-11-26T08:39:32.717+00:00

    hi,

    i tested much with the options of the wds server, but this wasn't solved the problem.

    264391-image.pngI got it working with changing the port speed of the device to half-duplex 100Mbit.

    enabled: "Enable Variable Windows Extension".
    max Blocksize: 0

    best regards

    Chris