If you use an Actiontec GT704-WG wireless ADSL router, are familiar with configuring it, and have a spare 5 minutes or so, perhaps you could run a quick test. I am having a problem with my GT704 and feel that it is inherent in the firmware and not a defect of my particular router but I cannot be 100% certain.
I have found that if I set up the router in DHCP configuration, but specify what DNS servers should be issued to the clients (static rather than dynamic), the modem still continues to issue its own LAN IP address and the local ISP DNS server IP address rather than the IP addresses that I have specified. I would like to know if this the case for all GT704s or only mine.
In order to run the test you must first configure the GT704 to use two DNS servers that are not associated with your ISP. A good set of instructions, if you are not familiar with the procedure or do not know of two DNS servers to use, can be found at.
After you have rebooted the GT704 and confirmed that IP addresses you entered have been saved, one way of determining what DNS server IP addresses are being issued to your Windows XP client (assuming it is using DHCP to obtain an IP address and DNS server information) is to open up a command prompt and issue the command "IPCONFIG /renew" followed by the command "IPCONFIG /all". The DNS servers listed by the second command should show the addresses you configured the GT704 to issue. I would be curious if that was the case, or if it continues to issue the LAN IP address of the GT704 (probably a 192.168.xxx.xxx address) and your local ISP DNS server IP address.
After the test you can repeat the configuration procedure but select dynamic rather than static to return your GT704 to its original configuration. Thanks for your help.