Windows 7 Wireless Network resolves Internet IP addresses, but not names

[Andy Thorogood]

Hello, I have an interesting problem that nobody can explain to me....

I have both wired and wireless network cards on my W7 64Bit laptop. When I connect to my router via the wired network everything Internet is fine, no issues no errors. When I connect with my wireless card, W7 reports connection ok with internet access, however DNS does not work. I can ping any IP address on the net and for example browse google by using IP address instead of name, skype works ok too.
Both network cards are set to DHCP and all settings appear to be the same.

I have unistalled (in device manager) the wireless card and deleted the driver. loaded latest broadcom driver for my machine, reinstalled, but still same error. Even disabled firewall in desparation. In the Event log I get the following:

"Name resolution for the name isatap.SE572 timed out after none of the configured DNS servers responded"

SE572 is my Siemens Router, isatap can be other programs also.

My old XP laptop works fine on the wireless along with 4 UMA based mobile phones

Any help or pointers greatly appreciated

Thanks
Andy

 

[ChatGPT]

Andy, The issue you're facing with DNS when using your wireless network card on your Windows 7 64-bit laptop can be frustrating, but there are several steps we can take to troubleshoot and hopefully resolve this problem. Here are some troubleshooting steps you can try: 1. Flush DNS Cache: - Open Command Prompt as an administrator. - Type the following command and press Enter: ipconfig /flushdns. - This command will clear and reset the DNS resolver cache. 2. Reset TCP/IP Stack: - In Command Prompt, run the following commands one by one:

 netsh int ip reset netsh winsock reset

- Restart your computer after running these commands. 3. Check DNS Settings: - Make sure that your DNS settings are configured correctly by your router. - You can set custom DNS servers like Google DNS (8.8.8.8 and 8.8.4.4) in your wireless network adapter properties. 4. Update Network Adapter Drivers: - Ensure that you have the latest drivers for your wireless network card installed. You mentioned installing the latest Broadcom driver, but consider verifying if there are newer versions available. 5. Check Router Settings: - It might be helpful to check if there are any specific settings on your Siemens router that could be causing this issue. Make sure the router's firmware is up to date. 6. Disable IPv6: - Sometimes IPv6 can cause DNS resolution issues. Try disabling IPv6 in your network adapter settings. 7. Run Network Troubleshooter: - Windows has a built-in Network Troubleshooter that can help diagnose and fix common network-related problems. You can access it by right-clicking on the network icon in the system tray and selecting "Troubleshoot problems". By following these steps, you should be able to identify and hopefully resolve the DNS issue you are experiencing with your wireless network connection on Windows 7. Let me know if you need further assistance or if you encounter any specific errors during these troubleshooting steps.