N/APosted on - 06/04/2012
I just got a laptop a month ago– a brand new Samsung with Windows 7 installed on it. The wireless feature is built right in. I use a rather unreliable router with a reliable ISP and everything works fine. This morning my internet worked fine but about an hour after I used it wouldn't connect. When I clicked on Diagnose and Repair, I got this message:
There may be a problem with your Domain Name Server (DNS) configuration.
Windows failed to find the well known host "www.microsoft.com" using DNS. The server may be down.
The internet works absolutely fine for both of my roommates, and even when I plugged my laptop directly into the modem I got the same problem.
Please, help on this.
Domain Name Server Configuration Problem.
The problem you are receiving is due to incorrect DNS settings. Try the following solutions below:
1. Click Start and then type NCPA.CPL on the search box and then press the enter key.
2. Select your connection and then right-click it and click Properties.
3. Select Internet Protocol Version 4 or the TCP/IPv4 and then click Properties.
4. Change the value for the Preferred DNS Server to 184.108.40.206.
5. Click OK and then OK again to complete the process.
If you are still receiving the same issue, repeat the same steps and change the value for the Preferred DNS Server to 220.127.116.11.
Domain Name Server Configuration Problem.
Hi, You must to know first if you really got a DNS problem, here is a step by step example on how to test if you got a DNS problem
to test this is to try to access the problem website via its IP address instead of its name. You can find a website's IP address by opening a Windows MS-DOS or Command prompt and typing ping, followed by the website domain you are trying to reach (don't type the www, though). Here's an example using yahoo.com:
Pinging yahoo.com [18.104.22.168] with 32 Bytes of data:
Reply from 22.214.171.124: Bytes=32 time=219ms TTL=48
Reply from 126.96.36.199: Bytes=32 time=222ms TTL=48
Reply from 188.8.131.52: Bytes=32 time=216ms TTL=47
Reply from 184.108.40.206: Bytes=32 time=220ms TTL=48
Ping statistics for 220.127.116.11:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 216ms, Maximum = 222ms, Average = 219ms
You can see that 18.104.22.168 is yahoo.com's IP address, so now enter http://22.214.171.124/ into your web browser's address or location box. If the website comes up, you've got a DNS problem.
Here's how to fix DNS problem for Win Xp:
1) Open the Network Connections Control Panel. Double click on the Local Area Connection icon in the LAN or High-Speed Internet section of the Network Connections window that opens. Click on the Properties button of the Local Area Connection Status window that opens.
2) Click on the Internet Protocol (TCP/IP) item to select it and click the Properties button.
3) All you need to do is click the Obtain DNS server address automatically button (the static DNS server information will automatically be cleared). Click OK in each of the TCP/IP and Local Area Connection properties windows to close them.
4) Once again, we want to be sure that we now have new IP address information. You should still have the Local Area Connection Status window open. Click the Support tab, then click the Repair button. After a short delay, you should get a repair completed Popup and IP address information should reappear in the window. You will need to click the Details… button to see the DNS server information.
5) Now open your web browser and try your problem sites. The problem should be fixed.
Here's the fix for Win7:
1. Click "Start", input "NCPA.CPL" (without quotation marks) and press Enter.
2. Right click on the connection that you use for the local connection, and then click "Properties".
3. Click to select "Internet Protocol Version 4 (TCP/IPv4)", and then click "Properties".
4. In the Internet Protocol window, let's change the "Preferred DNS server" to 126.96.36.199
5. Click 'OK' twice to complete the modification.
If the issue persists, please repeat the steps and change the "Preferred DNS server" to 188.8.131.52.
Meanwhile, I would appreciate your help in clarifying that if the network is based on a router or a DSL modem. If there is a router, please bypass it and connect to DSL modem directly for a test. Thank you, hope I help you with this.