PXE-E53 Error
We've run in to this error on several occasions, but recently had it occur for a reason that we'd never seen before. Found a nice document on HPs website about PXE error codes that included a new resolution to this specific error that I'd never seen before. Thought I'd post it here in case anyone else was scratching their heads with this one, as we were. We experienced this issue with DS 6.5 and 6.8.
If the Microsoft DHCP service is installed on the PXE server, but is disabled or unconfigured, Altiris PXE Setup configures PXE to work with the local DHCP service (even if the DHCP service is disabled). This causes the PXE server to not respond to PXE clients that get a DHCP address from DHCP services running elsewhere on the network.