Yesterday we set up an Windows Server 2008 R2 on a HP DL380 G7 to run Symantec Altiris for deployment. However, whatever we did, it just didn’t work! The computers couldn’t PXE-boot. After a lot of googling and testing, we finally found the problem: On the physical NICs, you need to turn of Checksum Offload, Large Send Offload and TCP Connection Offload. It’s possible that you don’t need to turn off all of these services, I didn’t have the time to try all possible modes with these options. If you have, please feel free to write about your findings in a comment below.
Just turn it off, the Offload feature also make a pissed off me too.
I’ve never needed to do this before on the Deployment Solution, however we were using PowerEdge 2950’s which were using Broadcom nics. We did have the lock the ports at 1000-full though as sometime we would run into issues with the ports being set to auto.