First make sure that you have a valid connection to the router and that you have a valid IP address.

(note: for a wired connection you should have a link light on the numbered port of the router to which your computer is connected.  You should have an IP address in the range 192.168.2.x.  To check your IP address, click on Start, Run and type in command. Click OK.  Now type in ipconfig and hit enter.  Your IP address will be listed.)

For the F5D5230-4, F5D6230-3

1. Open a Web Browser
2. In the address bar type http://192.168.2.1 
3. Click on Initial Setup
4. Select Dynamic and click Select
5. Click Clone MAC Address and click Enter
6. Click on Status in the left hand column
7. It should now show Connected under the Internet column 

For the F5D5231-4, F5D6231-4, F5D7230-4

1. Open a Web Browser
2. In the address bar type http://192.168.2.1 
3. Click on MAC Address in the left hand column under Internet WAN heading
4. Enter your password if any and click Submit
5. Click on Clone and then click on Apply Changes
6. Click on the Home link at the top of the screen
7. It should now show Connected as the Internet Status at the top right hand corner of the web page