SCCM pxe boot failed

dylanand2 220 Reputation points

Hi experts,

We are using SCCM version 2211. Now some devices fail to PXE boot after successfully download NBP file and get the error:

GetBoot ServerAck:No boot server ACK was received.

Getbootinfo: failed to retrieve last received boot server ACK message.

At the same time, other machines can PXE boot without any issues. Has anyone else encountered the same issue? Please help.

Microsoft Configuration Manager Deployment
Microsoft Configuration Manager Deployment
Microsoft Configuration Manager: An integrated solution for for managing large groups of personal computers and servers.Deployment: The process of delivering, assembling, and maintaining a particular version of a software system at a site.
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Accepted answer
  1. Simon Ren-MSFT 22,581 Reputation points Microsoft Vendor


    Thank you for posting in Microsoft Q&A forum.

    1,Please help check the smspxe.log on the PXE-enabled DP to see if there is any further information.

    2,After NBP file download successfully, the NBP downloads the operating system loader and the boot files via TFTP. Make sure that the TFTP port (UDP port 69) is open between the client computer and the DP. Please also make sure that no firewalls are blocking the DHCP ports between the DHCP/PXE server and the client.

    3,Try to reduce the block size on the PXE-enabled DP, more information see KB 975710.

    4,For more information about PXE Boot, please refer to:

    Advanced troubleshooting for PXE boot issues in Configuration Manager

    Understand PXE boot in Configuration Manager

    Thanks for your time. Have a nice day!

    Best regards,


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