A DNS server is a computer connected to a system for registering domain names. The advantage of DNS servers have public IP address and the ability to use specialized software network. However, it was determined that the complaining party does not answer DNS server in Windows 7.
Sometimes the computer will not connect to the Internet, and displays an error message that does not respond, the DNS server. In some cases, the computer can show that the data rate is changing. Theonly problem you get is hard to connect the computer to the Internet.
Solutions:
1 Incorrect DNS settings
2 Disable the firewall
3 Clean your browser cache
4 Uninstall VPN software
5 Install the network card
6 Set a static IP via DHCP
Incorrect DNS settings
Incorrect DNS settings can not be the cause of your DNS server responds to Windows 7 to become These are the steps to make the correct settings:
1 Click the Start button ontaskbar.
2 Enter ncpa.cpl in the search box and press ENTER.
3 Right click on LAN connection to use and select Properties.
4 Select Internet Protocol Version 4 (TCP/IPv4) and click the Properties button.
5 Select the 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 the firewall
If you use a software firewall,off temporarily and see if the problem persists or not.
Disable Windows Firewall
1 Click the Start button on the taskbar.
2 Insert the Windows firewall in the search box and press ENTER.
3 Click Turn Windows Firewall on or off link in the left pane.
4 Select the following two ways:
a. Turn off Windows Firewall (not recommended) from home or from work (private) network location settings.
b. Disable Windows Firewall (not recommended) or from homeWork (private) network location settings.
5 Click OK.
Clean your browser cache
Clean your browser cache cleaner software system to solve this problem. Most of the time the Internet browser connectivity problem.
Uninstall VPN software
Virtual Private Network (VPN) software enables private communications over wireless networks or computer network using tunneling technology. If you have VPN software installed, then try uninstalling.
1Click Start | Control Panel.
2 For Windows XP, double-click Add or Remove Programs. Uninstall program | Windows Vista or Windows 7, click All Programs.
3 Select VPN software you installed.
4 Click Uninstall or Remove.
5 Follow the onscreen instructions and restart the system after completion.
Install the network card
1 Click the Start button on the taskbar.
2 Go to Device Manager in the search box and press ENTER.
3 Expand: | NetworkAdapter.
4 Right-click the network card in use, and select Uninstall.
5 Restart the system after completion.
6 The system must recognize the network card now. If not, then steps 1 and 2.
7 Right-click and select Scan for hardware changes.
8 The new hardware is started. Wait for the detection of the network card.
9 Configure the network card you just installed properly. For information on how to configure it to referIncorrect DNS settings section.
Set a static IP via DHCP
For those who get their IP address via DHCP to configure the network settings as follows:
1 Click the Start button on the taskbar.
2 Enter ncpa.cpl in the search box and press ENTER.
3 Right click on LAN connection to use and select Properties.
4 Select Internet Protocol Version 4 (TCP/IPv4) and click the Properties button.
5 Select the following IP address.
6 EnterFollowing:
a. IP Address: 192.168.1.3
b. Subnet Mask: 255.255.255.0
c. Default Gateway: 192.168.1.2
7 Select the 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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