TFTP Error after Lucid update

[francois]

Hello,

I've just updated two computers running with test purpose ltsp server.

On both cases, clients gets an nIP address but then :
----
TFTP
PXE-T02: Forbidden directory
PXE-E3C: TFTP Error - Access violation
PXE-M0F: Exiting intel PXE Rom
----

On computer 1, I did "sudo ltsp-update-kernels"
On computer 2, I rebuilded the client "ltsp-build client".

Could you give me any advice?

François