When clients are booting PXE they receive the following error:
PXE-E95 MTFTP Read Timeout
PXE-E92 MTFTP Open Timeout
PXE-E32: TFTP open timeout.
TFTP open request was not acknowledged. Verify that the MTFTP service is running.
PXE-E35: TFTP read timeout.
Next TFTP data packet was not received.
This is caused by client computers not being able to receive the PXE bootstrap file via multicast.
Solution 1: From the Deployment Server console:
Note: When Deployment Solution is upgraded from previous versions, this setting may be re-enabled.
Solution 2: Check configuration of PXE Forced Mode.
Use the document 'PXE Forced Mode Utility', document HOWTO5258.
NOTE: See also: 'PXE-E32: TFTP OPEN TIMEOUT error when attempting to PXE boot', TECH6342.
Deployment Solution versions 6.1 to 6.9 SP 4.