77D-Link GO-RT-N300 User Manual
Appendix B - Networking Basics
Networking Basics
Check your IP address
After you install your new D-Link adapter, by default, the TCP/IP settings should be set to obtain an IP address from a DHCP 
server (i.e. wireless router) automatically. To verify your IP address, please follow the steps below.
Click on Start > Run. In the run box type cmd and click OK. (Windows® 7/Vista® users type cmd in the Start Search box.)
At the prompt, type ipconfig and press Enter.
This will display the IP address, subnet mask, and the 
default gateway of your adapter.
If the address is 0.0.0.0, check your adapter installation, 
security  settings,  and  the  settings  on  your  router. 
Some firewall software programs may block a DHCP 
request on newly installed adapters.