I applied the May imaging update to our ZCM 11.3.2 server to support some new NIC hardware.

However amongst the many issues I have had with this update (a previous NIC that worked no longer does) I have just discovered that our WinPE Maintenance Mode that I launch from the imaging menu no longer works, after I select it I get the message:

Using configuration file: winpe64.cfg
PXENV_RESTART_TFTP failed 0x1 0x1

I have used this countless times just before the imaging update - have rebooted the server but unsure to why this is happening from the update.
Does it want WAIK re-installed, don't know why it would?

Any ideas appreciated.