I am trying to connect to the internet even though I have wireless connection at home.I'm using a Motorola SB5120 SURFboard cable modem and D-Link 604 Wireless Router. I contacted the ISP and they said I am online through them. The problem is that I can't connect to the internet (using Firefox). I tried connecting wireless to other places and access the internet through their connection, and everything worked. I rebooted and unplugged cables (typical first-aid) and nothing happened. I did notice that the Online in the modem was blinking, and not solid light. Is my modem and/or router failing?

Did you clone your workstation mac address to the routers wan interface? In other words, do you get internet if directly connected to the modem and not when connected via the router?

I just checked the specs and I made a mistake... I'm using d-link 514 wireless router, not 604. When I used the modem directly to the laptop and forgetting the router, I can't connect to the internet. Frustrated to the situation, I reset my router and followed the manual again step by step: connecting via 198.62.0 (some sort of numbers), though I think I didn't clone the MAC address. I'll try that. I've tried my laptop to work wireless to a friend of mine and it worked (I guess that rules out that my the laptop as a whole was the problem). I have yet to try to use my cable modem to someone's internet and see if they can connect. The tech guy from Motorola said that all lights in the cable modem should be steady. The online light in my modem was blinking. In addition, when I press the Stand-By button, it's not working too. Unfortunately, while I was able to setup my wireless router again, I couldn't connect to the wireless anymore. The direct modem-computer connection failed also (shows limited or no connectivity message)