Long time follower/reader, first time replying though. First and foremost, thank you for all your information, you are the man!! Now to my issue(s)...
I have setup my deployment 97% the same way you have, a couple minor tweaks as I already had MDT running and working for multiple models of computers in our environment. I followed through your guide and verified I had done everything as you did less the script portion. My issue is that my device will not PXE boot, as in it shows that it finds the "media" and states downloading the NBP file. It then skips to IPv6 boot, sits for a bit then boots normally. I have attached the images in the order they occur.
All my other models are still able to PXE boot & image without any issues. I have verified all drivers/updates/firmware are correct and am using the Microsoft Dock for my Ethernet connection.
UPDATE: I took a video of the process as I noticed a VERY quick message after the NBP portion. I was able to review the video and found that it is showing PXE-E99: Unexpected Network Error. I again verified that all my other models are working. Updated my shares, verified drivers/firmware/etc. I even adjusted settings in the "BIOS" just to test with, but nothing is making a difference on this one at all.
UPDATE #2: I have moved past the PXE issues but am now having a problem where the image applies but does not perform the steps to join the domain, rename the PC, etc. I have reviewed the logs and have no errors, it's like it just decided to stop processing once the image is applied. I am at a total loss at this point and would GREATLY appreciate some help from anyone.
Thanks in advance for any help with this.