Unable To ~upd~ Download Pxe Variable File. Exit Code 14 Sccm -

Is this error happening on or just a specific model/via a USB dongle ?

The machine might grab an IP initially via standard PXE, but once the specialized WinPE boot image takes over control of the hardware, it drops the connection because it lacks the precise driver required for that specific laptop or desktop motherboard chipset.

Once you've diagnosed the cause, implement the appropriate solution(s) below.

| | Action | | :--- | :--- | | 1. Network Driver | Obtain and inject the correct WinPE-compatible NIC driver for your client model into your SCCM boot image. | | 2. DHCP Configuration | Remove DHCP Options 66 and 67. Use IP Helpers on your network routers and switches. | | 3. Boundary Groups | Ensure the client's subnet is part of a valid SCCM boundary associated with a boundary group containing your PXE DP. | | 4. Task Sequence | Verify the OS deployment task sequence is actively deployed to the client or an "Unknown Computers" collection. | | 5. PXE Role | If all else fails, reinstall the PXE role on the distribution point. | unable to download pxe variable file. exit code 14 sccm

Verify that the client’s current IP subnet or DHCP scope is explicitly listed inside a Boundary Group.

The Microsoft Microsoft Endpoint Configuration Manager (SCCM) error is a critical network communication breakdown that occurs when a target client boots into the Windows Preinstallation Environment (WinPE) but fails to fetch its environment configuration file ( variables.dat ) from the Management Point (MP) or Distribution Point (DP).

After further investigation, John discovers that the issue is caused by a mismatch between the computer's BIOS and the PXE boot file. The computer's BIOS is set to use UEFI booting, but the PXE boot file is configured for legacy BIOS booting. Is this error happening on or just a

Monitor distmgr.log and Smsdpprov.log for entries indicating successful PXE role removal.

Never guess the solution to an SCCM error. You must inspect the logs to identify the exact point of failure.

If your network drivers are perfectly fine, the issue might be on the Distribution Point hosting your boot images and task sequence policies. | | Action | | :--- | :--- | | 1

Before making any changes, gather diagnostic information to pinpoint the exact cause.

He also checks the client's log file (SMSTS.log) and finds:

When the PXE boot fails and the machine halts, press F8 to open the command prompt. Type ipconfig .

Over time, the boot image or the PXE service point itself can become corrupted.

If you have found another solution or are still encountering issues after trying these steps, please share the context and your SMSTS.log in the discussion below to help fellow administrators in the community.