Error: "TFTP Timeout" when attempting to PXE Boot

Issue

PXE Boot fails with a "TFTP TIMEOUT" error. This can also present as the following errors:

• PXE T04
• PXE-E36
• PXE-E32
• PXE Error M0F

Cause

• The most likely cause is that the LANDESK PXE MTFTP service is not running or needs to be restarted on the PXE Representative:
• VPN software has changed the MTU setting in the registry on the PXE Representative causing TFTP to fail.
• A network device in the network is dropping or malforming network packets.

Resolution for TFTP Service not started or needs restarted

1. Open the Services applet on the PXE Representative (through Control Panel or type "services.msc" from the Run line"

2. Check the status of the LANDESK PXE TFTP service.   If it is not running, start it, if it is already running, restart it.

Resolution for PXE Representive MTU size

On the PXE Representative, do the following:

1. Open Regedit
2. Navigate to HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\Interfaces
3. Search for "MTU" and select "Match whole string only".
4. There will be an MTU value for each network interface
5. Verify that the value is set to 1500
6. The PXE Representative may need to be rebooted

Resolution for Network Device Dropping or Malforming Packets

More information on PXE boot errors:

PXE Boot errors and descriptions.

How to troubleshoot LANDESK PXE boot:

Troubleshooting PXE boot (OSD)