I’m still having a few teething issues. I booted up a physical PXE client this morning and had that strange error from a previous post, so I assumed it might be a PXE firmware issue or something. PXE booted my laptop fine, then booted the same client and that was fine too. ?
Also, I couldn’t figure out why my work PC (Hyper-V) wasn’t really getting the SCCM agent installed properly. Looks like I’d forgotten to configure Administration > Site Configurations > Sites > sitename > Client Installation settings > Client Push Settings. Also, there was no FQDN under Administration > Site Configuration > Site system Properties, made both these changes and it all started working fine.