In the Network Connections dialog, you will need to press the ALT key on your keyboard to get the menu bar to appear. Then click on Advanced and click on Advanced Settings.
Now you will see the list of network connections listed in the connections box.
Normally you would see Local Area Connection and Wireless Network Connection. You want to move Local Area Connection to the top using the green arrows. This will move the wired connection higher up in the order so that Windows 7 will access the network using Ethernet first, then Wireless. That’s step one. The second method is also recommended to ensure Windows 7 is forcefully using the LAN connection.
Method 2 – Change Network Metric Value You can read a little bit about how metric values work when accessing network resources here:
http://support.microsoft.com/?id=299540 In order to change the values, you need to go to Network Connections again, but this time right-click on the network you want to change the metric value for and choose Properties.
Now click on Internet Protocol Version 4 (TCP/IPv4) and click on Properties.
Then click on the Advanced button at the bottom right:
Lastly, on the IP Settings dialog, go ahead and uncheck the Automatic metric box and then type in a value yourself.
For the wired connection, you want a lower value and it’s best to start with 10. At least that’s the standard Microsoft uses. For the wireless connection, you can type in a higher value like 25 or 100. This will ensure that in the routing table, the “faster” network route is now the wired connection instead of the wireless connection.