hello
thanks for your answer.My shield is different from the link you provide.I attach a picture of mine and also my arduino board.
The one I have it was sold to me as a original part of arduino. The main differences is the components are in other places on the board.
(Ijust hope the layout is different).
About your suggested test I cant even send the link sketch with the shield connected without the lan cable.with it is the same result
I haven't tried yet in a windows environment to see if the is some wrong with Ubuntu.
I have nothing connect on the shield, this is very strange since the shield comunicates with arduino via SPI
