Unable To Download 2021 Pxe Variable File. Exit Code 14 Sccm

The error "Unable to download PXE variable file" with Exit Code 14 in Microsoft Configuration Manager (SCCM/ConfigMgr) typically indicates a network-level failure where the WinPE environment cannot communicate with the Management Point (MP) to retrieve the task sequence variables. Exit Code 14 specifically translates to "A network error interrupted the operation". Primary Causes

2. Check Port Permissions (TFTP vs. HTTP)

SCCM Current Branch versions have moved toward using HTTP/HTTPS for downloading content during PXE, but older versions rely heavily on TFTP. unable to download pxe variable file. exit code 14 sccm

  • Inspect antivirus/firewall:

    He leaned back in the squeaky wheeled chair, pulled his cold coffee closer, and texted his boss two words: Fixed it. The error "Unable to download PXE variable file"

    • The boot image.
    • The operating system image.
    • The task sequence referenced.

    Secondary Log: PolicyEvaluator.log

    Located on the Management Point (or via smsprov.log). On the PXE-enabled DP, restart the SMSPXE service

  • Verify PXE server configuration:

    Summary checklist (short)

    • Confirm DHCP/IP helpers are correct.
    • Check DP is PXE-enabled and WDS running.
    • Verify boot image distributed and not corrupted.
    • Inspect SMSTS.log and smspxe.log for specific error details.
    • Switch to HTTP PXE if TFTP/timeouts are suspected.
    • Re-distribute boot image or reconfigure WDS as needed.
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