First try power cycle everything. Check all your cables and connections. You may have plugged it into the wrong place, not get a good connection, or even have a bad cable.

@Eddie387 

 

Disconnect everything again, find your modem, and make sure that goes into the blue port or intenret port of the router. Once that is verified look at the internet light of the router. If the light is amber, leave the router on, and reboot just the modem.

 

If the internet light now looks like all the others, connect a wireless device to the router and see if that works. If that does, now connect a computer to the LAN port to see if you have internet. If you do not have internet, what is the IP address that your computer got that was wired to the router?