Checking that the client has received IP address and DNS server information
Windows XP
1. Double-click the network icon in the taskbar to display the Wireless Network Connection Status window. Check that the correct network is listed in the Connection section.
2. Select the Support tab.
Check that the Address Type is Assigned by DHCP. Check that the IP Address, Subnet Mask, and Default Gateway values are valid.
3. Select Details to view the DNS server addresses.
The listed address should be the DNS serves that were assigned to the WAP. Usually a wireless network that provides access to the private LAN is assigned the same DNS servers as the wired private LAN. A wireless network that provides guest or customer users access to the Internet is usually assigned public DNS servers.
4. If any of the addresses are missing, select Repair.
If the repair procedure doesn’t correct the problem, check your network settings.