On your daughter's laptop, go to Control Panel > Network connections. Right-click on the Wireless connection's icon and choose Properties. On the General tab, make sure her wireless adapter is chosen in the "Connect using" section. Scroll down the list and click on "Internet Protocol (TCP/IP)" and then click the Properties button. On the General tab in there, make sure that both the:
"Obtain an IP address automatically" and the "Obtain DNS server address automatically" options are ticked. Click OK and OK again to exit.