Can't boot from lan twice

[rojanu]

On the first boot of the client machine I got into RIS and when I tried to boot from LAN again I get Media test faiulre, I have 6 machine with exactly same specs and this happened on 3 of them so far

any ideas???

[jtroydc]

Bios Updates, and Nic Updates if possible. I had some problems with a few of my IBM Intelistations Z pro's and some of my Dell 530 Persisions. Once I updated the Bios on the Dells and the broadcom flash on the IBM's I was set and rocking and rolling.

[RogueSpear]

If there's a BIOS option for "PnP OS", set it to disabled. This is particularly a problem with slightly older computers.