SurferTim:
Try another router. Works with Cisco stuff too. I checked it with my ISP's router. Got an ip and was pingable.
hie, sorry i'm new to the forum and arduino as well, i'm trying to connect my arduino ethernet shield as a web client using DHCP but i dont have a router, is it possible for me to connect it to my pc via ethernet cable. i've tried the DHCP example from Ethernet - Arduino Reference but i keep getting the error : Failed to configure Ethernet using DHCP. i'm using arduino uno r3 and a w5100 ethernet shield and arduino 1.0.4 IDE, the LEDs flash if i push the reset button. i would greatly appreciate your help or suggestions