My gateway don't get an ip?

[Johan71]

Hi all
totally noob here and i just got my uno but i can't get it to get an ip from my router.
don't really know where to change to static ip or what to change.
i have a uno with the 5100 lan board.

[gohan]

if you have defined the mac address and nothing else, it should get IP from DHCP. You could also try with Cayenne Mydevices as I did to figure out that the shield wasn't working as it couldn't get dhcp address nor static IP, so I got another one that is still working right now (it is not difficult to find defective w5100 shields especially in the cheap range)