I have a Belkin N150 witreless router. I have a Scientific Atlanta cable modem with a good interenet connection. I can't get the wireless network to work.

Seems to be that you have cable modem from Scientific atlanta.

1. Turn off the modem and the router.
2. Connect the modem to router with ethernet cable on internet port
3. and computer to router's port no 1.
4. power up your modem and wait for 2 minutes
5. then power up your router and wait for 2 minutes and try to go online on computer.
6. If not , then reset your linksys router by pressing your reset button at the back of the router with help of a pen for 10 sec.
7. then follow the steps again 1 to 5
8. try to go online.
9. if still not , the open up a browser on computer
10. type 192.168.1.1 in the address bar and hit enter on the key board
11. leave the user name blank and type admin in the password box
12. click on subtab of mac address clone under set up tab
13. click on enable and click on clone my pc's mac tab.
14. then click on save settings.
15. and follow the step 1 to 5.

The Ethernet cable will connect your ISP modem to the Belkin. Here is a User manual: http://cache-www.belkin.com/support/dl/MAN_F7D5301_v1_8820-00696_Connect_N150_Router.pdf

connect the cable on the yellow jack and the other end to your pc.

Make sure the IP of the Router and the IP of the MAC is in the same scope.
E.G. Router: 192.168.1.1 Subnet 255.255.255.0
Mac: 192.168.1.5 subnet 255.255.255.0
Typically the router acts as DHCP-server and distributing ip-adresses automatically, when a computer is connected. But the the IP can also be set manually.

This indicates that router can't detect cable modem or this is unresponsive, probably your modem is logically tied with your PC (MAC address associated), that's why when you connect them directly work fine, if this is the case, you'll have to clone the MAC address of your PC into your router, this should be at Setup Menu, Manage MAC addresses option.

f the modem light keeps blinking, it means that the router hasn't been configured yet. Also, rarely, it can be an issue with WAN port/modem port on the router or the ethernet cable connecting the modem to router or finally, modem may not be working as its not applicable in this case(as you said).

1.Connect comp.--(gray port) router (yellow port)--modem
2.On the computer, open the router page by typing 192.168.2.1 in the address bar of browser

NOTE : IF YOUR INTERNET SERVICE PROVIDER IS CABLE FOLLOW THE BELOW STEPS

3.Under Internet WAN , SELECT the connection type as Dynamic.->NEXT
4.On the far left column, click on "MAC address" under Internet WAN.
5.Click on clone and apply changes and finally check Internet status
6.If internet status > Not connected, we need to do a network power cycle
7.For this, unplug the power from router, then from modem, then unplug the coaxial cable from cable modem.
8. Wait for 60 sec, then connect the coaxial cable, then connect power to modem, wait for lights on modem to get steady, then finally, plug in the power to router.
Now, you may see proper lights lit on the router.
All my best wishes for a fast internet service through the router.

FOR PPPOE OR DSL CONNECTIONS
1.Under Internet WAN , SELECT the connection type as PPPOE ->NEXT
2.ENTER THE USERNAME & PASSWORD PROVIDED BY YOUR IN INTERNET SERVICE PROVIDER
3.CLICK ON APPLY CHANGES



For any advanced help, revert asap!
Thanks and regards,
MILAN

Unplug your cable modem for 30 minutes. Also turn off the router. After 30 minutes, plug in ONLY the cable modem. Wait about 2 minutes and then plug the router back in.