Disable CRL checking temporarily to see if that is the blocker. This is done by pressing F8 in WinPE (if enabled) and running specific registry commands or modifying the boot image to ignore CRL checks. If disabling CRL checks resolves the issue, the network team must ensure the client VLAN can reach the CRL distribution points.
If you have Multicast enabled on your DP, it can sometimes interfere with PXE variable transmission depending on your network switches. Try disabling Multicast temporarily on the DP properties and test PXE booting again.
-> Ensure the client can resolve the FQDN of your SCCM server. unable to download pxe variable file. exit code 14 sccm
Redistribute the boot image and the associated OS image and task sequence references.
: The WinPE boot image lacks the specific NIC drivers for the hardware model you are imaging. STP (Spanning Tree Protocol) : If the network switch has STP enabled without Disable CRL checking temporarily to see if that
At this specific stage, the machine has successfully completed the initial PXE handshakes and downloaded the generic boot image ( .wim ). However, right as WinPE initializes, it attempts to contact the Distribution Point (DP) or Management Point (MP) to download the variables.dat file containing your environment variables and task sequence policies. Exit code 14 explicitly maps to a network error that interrupts this operational phase. Root Causes of Exit Code 14
Sometimes a network error like Exit Code 14 can be caused by packet loss or MTU size mismatches across your network. Phase 4: Corrupt Boot Images or Missing Content If you have Multicast enabled on your DP,
Are you using for your Management Point?
PXE boot relies heavily on broadcasts and helper addresses. If your network isn't configured to route the traffic properly, the TFTP or HTTP connection to download the variables will drop.
are you trying to image when this error occurs?