[U-Boot-Users] tftpboot question

[eagle keeper]

Hi all, and sorry for disturbing you again.
I'm trying to load an image from a tftp server using tftpboot.
Server is reachable, and running. Address of image is correct.
U-boot contacts the right IP, then tries to load the image and intead
of printing "#" as documented, prints "T" (it means timeout I
suppose).
But I continue getting an error message: "Retry count exceeded"
Then the procedure starts again.

What this behaviour can depend from?
I excluded tftp configuration problems and network problems.

Thanks in andvance