In most home configurations you want your router’s DHCP server to dynamically assign IP addresses to all connected devices. The first step to resolving an IP conflict is to to set your computer to automatically get an IP from this DHCP server so it’s not forcing its own on the network; this could cause limited connectivity if two different devices are given the same IP.
If you are using Windows Vista or Windows 7, go to the Networking and Sharing center. On the left side click Change Adapter Settings.
Right click your ethernet adapter and click properties. Click Internet Protocol (IPv4) and click properties. Make sure it obtains your IP and DNS automatically. If you did not see your adapter in the above steps, you will need to download a driver for your networking adapter because your computer currently doesn’t recognize it.
Your settings should now look like this. After saving these settings and restarting your router, the IP conflict should be resolved. If you still have limited connectivity you need to make sure your router is set to dynamically assign IPs (DHCP enabled).
To do this you would need to visit your router’s configuration page and navigate to the LAN settings page, where you can change settings about how IPs are assigned.
