SCCM 2409 PXE Boot issues

[mdrabble]

Have a bit of a strange one with PXE booting clients.

 

New PC straight out of box - PXE boots and builds no problem

 

Existing PC - refuse to PXE book - fails to acknowledge Boot file - just simply gives up.

 

I remove existing PC name/mac address from SCCM - so cannot be related to known computer (as far as i know)

 

Only noticed this issue now, as last month or so, only been imaging new devices.

 

 

Clutching at straws as what to try next - other than removing and adding PXE in sccm.

 

Any other ideas/suggestion to look at.

 

Cheers

[mdrabble]

Used Wireshark to grab some further info and it just shows an existing device as a source IP of 0.0.0.0 using DHCP Discovery - It not getting the DHCP reply which is odd as new devices are fine.

 

DHCP working fine as device get an IP when booted into windows.

 

Boot file has PXE drivers - but would expect PXE to get DHCP before handing over Boot file.

 

Scratching my head on this one.....

[CHiLL]

Checking the SMSPXE.log file in "%ProgramFiles%\Microsoft Configuration Manager\Logs" would probably be your best bet. Have you also tried another NIC in the device, such as a USB device? You could also create a new boot image, duplicate the TS and edit the new TS to use the new boot image instead of modifying the existing and working boot image and TS, which could potentially break both.

[mdrabble]

Didn't even thing about the log files!

 

Turns out, the device I was first trying was in SCCM with another Device name, so as far as SCCM was concerned, it existed, therefore no action needed.

 

Now to look at these laptops.