A DNS Server is a computer registered for joining a Domain Name System. The benefits of DNS Servers include Public IP Address and possibility to use special purpose networking software. However, it has been noted that users complain about DNS server not responding on Windows 7.
Sometimes, the computer doesn't connect to the internet, and show you an error that The DNS Server is Not Responding. In some cases, the computer may show you that the data transfer rate is changing. The only problem you get is difficulty in connecting your computer to the Internet.
Solutions:
1. Incorrect DNS Settings
2. Disable Firewall Protection
3. Clean Browser Cache
4. Uninstall VPN Software
5. Reinstall the Network Adaptor
6. Setup a Static for IP via DHCP
Incorrect DNS Settings
The incorrect DNS settings may become the cause of your DNS Server not responding on Windows 7. Here are the steps to make correct settings:
1. Click Start button on the Taskbar.
2. Type NCPA.CPL in the Search box, and press ENTER.
3. Right click the local area connection you are using, and select Properties.
4. Select Internet Protocol Version 4 (TCP/IPv4), and click Properties button.
5. Select the option Use the following DNS server addresses.
6. Enter the following:
a. Primary DNS: 208.67.222.222
b. Secondary DNS: 208.67.220.220
7. Click OK | OK.
Disable Firewall Protection
If you are using a Firewall software, then disable it temporarily, and check whether the problem still persists or not.
Disabling Windows Firewall
1. Click Start button on the Taskbar.
2. Type Windows Firewall in the Search box, and press ENTER.
3. Click Turn Windows Firewall On or Off link at the left hand pane.
4. Select the following two options:
a. Turn off Windows Firewall (not recommended) from Home or work (private) network location settings.
b. Turn off Windows Firewall (not recommended) from Home or work (private) network location settings.
5. Click OK button.
Clean Browser Cache
Try cleaning the browser cache via system cleaner software for resolving this problem. Most of the times the internet connectivity problem are browser related.
Uninstall VPN Software
Virtual Private Network (VPN) software enables private communications over wireless or computer network via tunnelling technology. If you have installed any VPN software, then try uninstalling it.
1. Click Start | Control Panel.
2. For Windows XP, double click Add or Remove Programs. For Windows Vista or Windows 7, click Programs | Uninstall a Program.
3. Select the VPN software you have installed.
4. Click Uninstall or Remove button.
5. Follow the on screen instructions, and reboot the system after completion.
Reinstall the Network Adaptor
1. Click Start button on the Taskbar.
2. Type Device Manager in the Search box and press ENTER.
3. Expand: | Network Adaptors.
4. Right click the network adaptor you are using, and select Uninstall option.
5. Reboot the system after completion.
6. The system shall detect the network adaptor now. If it does not, then do the Steps 1 and 2 above.
7. Right click, and select Scan for Hardware Changes.
8. The new hardware process will start. Wait for detection of your network adaptor.
9. Configure the newly installed network adaptor properly. For the information about configuring it, refer to Incorrect DNS Settings section.
Setup a Static for IP via DHCP
For those using their IP Address via DHCP should configure the network settings as below:
1. Click Start button on the Taskbar.
2. Type NCPA.CPL in the Search box, and press ENTER.
3. Right click the local area connection you are using, and select Properties.
4. Select Internet Protocol Version 4 (TCP/IPv4), and click Properties button.
5. Select the option Use the following IP address.
6. Enter the following:
a. IP Address: 192.168.1.3
b. Subnet Mask: 255.255.255.0
c. Default Gateway: 192.168.1.2
7. Select the option Use the following DNS server addresses.
8. Enter the following:
a. DNS server: 192.168.1.2
9. Click OK | OK.
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