Do you have a laptop you can connect and verify it gets an IP? If your laptop gets an IP then you’ve ruled out the router, the cable and the ports. Are you able to control the ports speed on the router’s ports? If so, you can try hard coding a link speed instead of auto negotiate. Assuming all of this is fine or you can’t change it…
This leaves the WDTV box as the issue. So, you can try upgrading to the latest firmware. Before you do that, reset your device to facgtory defaults. If you are already at the latest firmware, try rolling back one version of firmware. again, reset device to factory defaults before rolling back. If you roll back, and it still fails, try upgrading back to the latest firmware after resetting to default settings. If after all that you still can’t connect, you can try going to another location and test it, frriends house, Best Buy, etc… or return it for another one.
