Go to Control Panel and double-click on Network Connections. Right-click on the connection in question and choose Properties.
Under the General tab, click on Internet Protocol (TCP/IP) and choose Properties. Under the General tab from there, the radio buttons should be chosen for Obtain and IP address automatically and Obtain DNS server address automatically.
The Default Gateway and DNS entries in his don't match yours, so that's definitely the place to start.
"An ounce of prevention is worth a pound of cure" ~ Ben Franklin