Opcode: Error Code(5)

Question

Imaging for HP EliteBook/vPRO intel is taking an extremely long time to complete the imaging. Packet capture on the firewall revealed laptop IP to server IP Error Code, Code: Illegal TFTP Operation, Message: Access violation.

From server to laptop Read Request, File:\EFI\Microsoft\Boot\boot.stl, Transfer type: octet, tsize=0

How to fix this issue?

Answer 1

Dear Hilliard,

This problem is almost always caused by a default WDS setting that is incompatible with newer UEFI firmware, like that in your HP EliteBook.

Let's try the most common and effective fix. You'll need to run these commands on your WDS server:

1. Open a Command Prompt as an Administrator.
2. First, we'll disable the Variable Window Extension, a common source of this error: Wdsutil /set-server /EnableVariableWindowExtension:No
3. Next, let's set a smaller, more compatible TFTP block size. A value of 4096 is a very reliable setting: Wdsutil /set-server /TftpBlockSize:4096
4. After running both commands, you must restart the WDS service for the changes to apply. You can do this by running services.msc, finding "Windows Deployment Services Server," and choosing "Restart."

These changes should resolve the access violation and allow the HP client to download the boot files correctly, letting your imaging proceed at normal speed.

If this answer was helpful and fixed your problem, I'd appreciate it if you could hit "Accept Answer"! It really helps other community members find the right solutions.

Answer 2

Hi Hilliard, Ty

Just wondering if your issue has been resolved yet? Do you still need any help? Hope to hear from you soon! If that sorted out your issue, don't forget to hit "Accept Answer"! It really helps other people with the same problem find the solution.