Hi, I just bought the WZR-300HP from NewEgg thinking this would be a slam dunk in replacing my out dated but still running D-Link router. I went through configuring the router to match my old LAN settings and then moved all the my cable over. I tried to connect to Comcast but it just tells me it can't find the DHCP server on the wan side. I spent 3 hrs going at it. Finally, i did some research on the web and did a firmware update on the router from buffalo.com on the router. It all seem simple and everything went smoothly on the upgrade with the exception it killed all my settings. I had to reconfigure it all over again. I finally got to reconnecting it to my Comcast cable again hoping it would solve the problem but no!!! It didn't work either. This piece of **bleep** hardware is really pissing me off. I bought it because it ran Wireless N with built in USB NAS storage. I am so frustrated. If anyone can help me, i would really appreciate it.