Issue
When booting into WinPE via PXE server, the following error message occurs:
PXE-E55 ProxyDHCP: No reply to request on port 4011
Cause
Option 60 is enabled on the DHCP Server
Resolution
Disable Option 60 on the DHCP Server according to manufacturer/vendor specifications.
For additional information, please visit Microsoft KB Article 259670
More information on PXE boot errors:
PXE Boot errors and descriptions.
Troubleshooting PXE boot: