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DNS server not responding

Discussion in 'Networking' started by arcs, Jan 29, 2015.

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  1. arcs

    arcs Thread Starter

    Joined:
    Jan 29, 2015
    Messages:
    15
    My Dell laptop is connected to the Internet through a broadband modem. But when I'm browsing the internet, the webpages are not opening in any of the browsers. Moreover, the network icon on the taskbar shows an exclamation sign with it. I tried to troubshoot the problem, it detected:
    "DNS SERVER NOT RESPONDING".
    How do I solve this problem?
    I'm using windows 8 in my lappy.
     
  2. etaf

    etaf Moderator

    Joined:
    Oct 2, 2003
    Messages:
    65,355
    First Name:
    Wayne
    Is this the only PC that disconnects - do other devices connected work OK - if so how are they connected to the router - wireless or wired

    What firewall / security suite or anti-virus do you currently have on the PC - or you have ever had on the PC in the past - any trial ware - like Norton, kaspersky or Mcafee or any free security suites like zonealarm, AVG , Webroot etc

    Please post back here the make and exact model of the router and if you have a separate modem, the make and exact model of the modem.

    Please make a note of the status of the lights on the modem and on the router when working normally - post that light status here.

    ------------------------------------------------------------------------
    ipconfig /all

    We would like to see the results from an ipconfig /all - post back the results in a reply here.

    If you cannot access the internet with this PC, then you will need to paste the results into something like notepad and then copy onto a machine that can access the internet and post the results in a reply here.
    Save the file to a USB flash drive or other removable media. Plug it into the working computer with internet access and copy the file and paste here.

    If you do not have another PC - do you have a phone connected to the internet - can you photograph the result and post the image in a reply
    Note: you will see entries named Tunnel adapter Teredo Tunneling Pseudo-Interface: we dont need to see that information - JUST the information above those entries

    For Windows 8
    To open a Cmd Prompt or an Administrator Cmd prompt from the Desktop.
    http://www.bleepingcomputer.com/tutorials/open-an-elevated-command-prompt-in-windows-8/
    Use Win + X and choose Command Prompt or Command Prompt (Admin) from the list.​

    For windows version, XP, Vista, W7
    Hold the Windows key and press R

    Now type CMD

    Now press Enter to open a command prompt box (A new dialogue box - black with white font, will appear on screen ):​

    In the command prompt window that opens, type the following command:

    Note that there is a space before the /ALL, but there is NOT a space after the / in the following command.

    ipconfig /all > network.txt & network.txt

    It will export the results into notepad and then automatically open the notepad and display on your screen.

    Now all you need to do is copy and paste those results into a reply here
    to do that:
    From the notepad menu - choose Edit - Select all
    all the text will now be highlighted
    Next
    From the notepad menu - choose Edit - Copy

    Now go back to the forum - goto the reply and then right click in the reply box and paste the results.
    The results from the notepad should now appear in the forum reply.
    ------------------------------------------------------------------------
     
  3. arcs

    arcs Thread Starter

    Joined:
    Jan 29, 2015
    Messages:
    15
    Sorry but I dont have any other PC, so I cant tell whether its working on other device or not.
    Right now I'm only using windows defender but earlier I had McAfee.
    Modem: UT STARCOM (Data one broadband)
    I've a BSNL broadband connection.

    Lights working:
    1) Power
    2) DSL
    3) Ethernet

    Command prompt results:


    Windows IP Configuration

    Host Name . . . . . . . . . . . . : Sujan
    Primary Dns Suffix . . . . . . . :
    Node Type . . . . . . . . . . . . : Mixed
    IP Routing Enabled. . . . . . . . : No
    WINS Proxy Enabled. . . . . . . . : No

    Wireless LAN adapter Local Area Connection* 14:

    Media State . . . . . . . . . . . : Media disconnected
    Connection-specific DNS Suffix . :
    Description . . . . . . . . . . . : Microsoft Hosted Network Virtual Adapter
    Physical Address. . . . . . . . . : 5E-85-56-45-B1-2D
    DHCP Enabled. . . . . . . . . . . : Yes
    Autoconfiguration Enabled . . . . : Yes

    Ethernet adapter Bluetooth Network Connection:

    Media State . . . . . . . . . . . : Media disconnected
    Connection-specific DNS Suffix . :
    Description . . . . . . . . . . . : Bluetooth Device (Personal Area Network)
    Physical Address. . . . . . . . . : BC-85-56-45-B1-2E
    DHCP Enabled. . . . . . . . . . . : Yes
    Autoconfiguration Enabled . . . . : Yes

    Wireless LAN adapter Local Area Connection* 12:

    Media State . . . . . . . . . . . : Media disconnected
    Connection-specific DNS Suffix . :
    Description . . . . . . . . . . . : Microsoft Wi-Fi Direct Virtual Adapter
    Physical Address. . . . . . . . . : 1E-85-56-45-B1-2D
    DHCP Enabled. . . . . . . . . . . : Yes
    Autoconfiguration Enabled . . . . : Yes

    Ethernet adapter Ethernet:

    Connection-specific DNS Suffix . :
    Description . . . . . . . . . . . : Realtek PCIe FE Family Controller
    Physical Address. . . . . . . . . : 74-86-7A-22-AA-71
    DHCP Enabled. . . . . . . . . . . : Yes
    Autoconfiguration Enabled . . . . : Yes
    Link-local IPv6 Address . . . . . : fe80::ec22:32dd:e838:3b67%13(Preferred)
    IPv4 Address. . . . . . . . . . . : 192.168.1.2(Preferred)
    Subnet Mask . . . . . . . . . . . : 255.255.255.0
    Lease Obtained. . . . . . . . . . : Thursday, January 29, 2015 7:32:06 PM
    Lease Expires . . . . . . . . . . : Friday, January 30, 2015 7:32:06 PM
    Default Gateway . . . . . . . . . : 192.168.1.1
    DHCP Server . . . . . . . . . . . : 192.168.1.1
    DHCPv6 IAID . . . . . . . . . . . : 359958138
    DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-19-68-AA-43-BC-85-56-45-B1-2D
    DNS Servers . . . . . . . . . . . : 192.168.1.1
    192.168.1.1
    NetBIOS over Tcpip. . . . . . . . : Enabled

    Wireless LAN adapter Wi-Fi:

    Media State . . . . . . . . . . . : Media disconnected
    Connection-specific DNS Suffix . :
    Description . . . . . . . . . . . : Dell Wireless 1705 802.11b/g/n (2.4GHZ)
    Physical Address. . . . . . . . . : BC-85-56-45-B1-2D
    DHCP Enabled. . . . . . . . . . . : Yes
    Autoconfiguration Enabled . . . . : Yes
     
  4. etaf

    etaf Moderator

    Joined:
    Oct 2, 2003
    Messages:
    65,355
    First Name:
    Wayne
    Are there any other lights on the device ? - you say the ones that are on and working
    which ones are OFF

    looks like you are getting a valid IP =

    Mcafee maybe the issue here - which we can deal with later
    But first
    lets goto the next step

    ------------------------------------------------------------------------
    Ping Tests
    If you cannot access the internet with this PC, then you will need to paste the results into something like notepad and then copy onto a machine that can access the internet and post the results in a reply here.
    Save the file to a USB flash drive or other removable media. Plug it into the working computer with internet access and copy the file and paste here.

    If you do not have another PC - do you have a phone connected to the internet - can you photograph the result and post the image in a reply

    For Windows 8
    To open a Cmd Prompt or an Administrator Cmd prompt from the Desktop. Use Win + X and choose Command Prompt or Command Prompt (Admin) from the list.​

    For windows version, XP, Vista, W7
    Hold the Windows key and press R

    Now type CMD

    then press Enter to open a command prompt box (A new dialogue box - black with white font, will appear on screen ): ​

    In the command prompt window that opens

    Type the following command
    Ping 192.168.1.1
    Post back the results in a reply here
    right click in the command prompt box
    select all
    enter
    control key + C key - to copy
    then reply here and
    control key + V to paste

    Type the following command
    Ping google.com
    Post back the results in a reply here
    right click in the command prompt box
    select all
    enter
    control key + C key - to copy
    then reply here and
    control key + V to paste

    Type the following command
    Ping 98.139.183.24
    Post back the results in a reply here
    right click in the command prompt box
    select all
    enter
    control key + C key - to copy
    then reply here and
    control key + V to paste



    if you see on the results a
    "general Failure"
    This sometimes means a firewall issue
    What firewall / security suite or anti-virus do you currently have on the PC - or you have ever had on the PC in the past - any trial ware - like Norton, kaspersky or Mcafee or any free security suites like zonealarm, AVG , Webroot etc


    ------------------------------------------------------------------------
     
  5. arcs

    arcs Thread Starter

    Joined:
    Jan 29, 2015
    Messages:
    15
    Sorry but above results were not copied fully.
    Full results:


    Windows IP Configuration

    Host Name . . . . . . . . . . . . : Sujan
    Primary Dns Suffix . . . . . . . :
    Node Type . . . . . . . . . . . . : Mixed
    IP Routing Enabled. . . . . . . . : No
    WINS Proxy Enabled. . . . . . . . : No

    Wireless LAN adapter Local Area Connection* 14:

    Media State . . . . . . . . . . . : Media disconnected
    Connection-specific DNS Suffix . :
    Description . . . . . . . . . . . : Microsoft Hosted Network Virtual Adapter
    Physical Address. . . . . . . . . : 5E-85-56-45-B1-2D
    DHCP Enabled. . . . . . . . . . . : Yes
    Autoconfiguration Enabled . . . . : Yes

    Ethernet adapter Bluetooth Network Connection:

    Media State . . . . . . . . . . . : Media disconnected
    Connection-specific DNS Suffix . :
    Description . . . . . . . . . . . : Bluetooth Device (Personal Area Network)
    Physical Address. . . . . . . . . : BC-85-56-45-B1-2E
    DHCP Enabled. . . . . . . . . . . : Yes
    Autoconfiguration Enabled . . . . : Yes

    Wireless LAN adapter Local Area Connection* 12:

    Media State . . . . . . . . . . . : Media disconnected
    Connection-specific DNS Suffix . :
    Description . . . . . . . . . . . : Microsoft Wi-Fi Direct Virtual Adapter
    Physical Address. . . . . . . . . : 1E-85-56-45-B1-2D
    DHCP Enabled. . . . . . . . . . . : Yes
    Autoconfiguration Enabled . . . . : Yes

    Ethernet adapter Ethernet:

    Media State . . . . . . . . . . . : Media disconnected
    Connection-specific DNS Suffix . :
    Description . . . . . . . . . . . : Realtek PCIe FE Family Controller
    Physical Address. . . . . . . . . : 74-86-7A-22-AA-71
    DHCP Enabled. . . . . . . . . . . : Yes
    Autoconfiguration Enabled . . . . : Yes

    Wireless LAN adapter Wi-Fi:

    Connection-specific DNS Suffix . :
    Description . . . . . . . . . . . : Dell Wireless 1705 802.11b/g/n (2.4GHZ)
    Physical Address. . . . . . . . . : BC-85-56-45-B1-2D
    DHCP Enabled. . . . . . . . . . . : Yes
    Autoconfiguration Enabled . . . . : Yes
    Link-local IPv6 Address . . . . . : fe80::3028:df86:c1bb:3321%12(Preferred)
    IPv4 Address. . . . . . . . . . . : 192.168.43.221(Preferred)
    Subnet Mask . . . . . . . . . . . : 255.255.255.0
    Lease Obtained. . . . . . . . . . : Thursday, January 29, 2015 7:37:42 PM
    Lease Expires . . . . . . . . . . : Thursday, January 29, 2015 8:45:54 PM
    Default Gateway . . . . . . . . . : 192.168.43.1
    DHCP Server . . . . . . . . . . . : 192.168.43.1
    DHCPv6 IAID . . . . . . . . . . . : 264013142
    DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-19-68-AA-43-BC-85-56-45-B1-2D
    DNS Servers . . . . . . . . . . . : 192.168.43.1
    NetBIOS over Tcpip. . . . . . . . : Enabled
     
  6. arcs

    arcs Thread Starter

    Joined:
    Jan 29, 2015
    Messages:
    15
    Lights
    1) Power (working)
    2) DSL (working)
    3) Internet
    4) Ethernet (working)
    5) USB
     
  7. etaf

    etaf Moderator

    Joined:
    Oct 2, 2003
    Messages:
    65,355
    First Name:
    Wayne
    the internet light should be lite
    thats when the modem logs into your ISP and connects to the internet
    so i suspect thats the issue

    turn off the modem for about 5minutes
    then switch on again

    the power light should come on
    then the DSL light should flash and go solid
    then the internet light should come on - flash and then maybe go solid or continue to flash - BUT it should be ON and NOT completely off
     
  8. arcs

    arcs Thread Starter

    Joined:
    Jan 29, 2015
    Messages:
    15
    Pinging 192.168.1.1 with 32 bytes of data:
    Reply from 192.168.1.1: bytes=32 time<1ms TTL=64
    Reply from 192.168.1.1: bytes=32 time<1ms TTL=64
    Reply from 192.168.1.1: bytes=32 time<1ms TTL=64
    Reply from 192.168.1.1: bytes=32 time<1ms TTL=64

    Ping statistics for 192.168.1.1:
    Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
    Approximate round trip times in milli-seconds:
    Minimum = 0ms, Maximum = 0ms, Average = 0ms




    Pinging google.com [74.125.236.35] with 32 bytes of data:
    Request timed out.
    Request timed out.
    Request timed out.
    Request timed out.

    Ping statistics for 74.125.236.35:
    Packets: Sent = 4, Received = 0, Lost = 4 (100% loss),





    Pinging 92.139.183.24 with 32 bytes of data:
    Request timed out.
    Request timed out.
    Request timed out.
    Request timed out.

    Ping statistics for 92.139.183.24:
    Packets: Sent = 4, Received = 0, Lost = 4 (100% loss),
     
  9. etaf

    etaf Moderator

    Joined:
    Oct 2, 2003
    Messages:
    65,355
    First Name:
    Wayne
    see post #7
     
  10. arcs

    arcs Thread Starter

    Joined:
    Jan 29, 2015
    Messages:
    15
    Earlier when the Internet used to work good, then the Internet light worked.
    The problem came around 3-4 days back.
    Since then the light is not working.
    But then also i tried many times to switch the modem on/off for 5 or more minutes. But still, same issue...
     
  11. arcs

    arcs Thread Starter

    Joined:
    Jan 29, 2015
    Messages:
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    I tried it again.
    Switched OFF the modem. Then after 10 minutes, turned it ON.
    The power light and DSL light worked accordingly.
    But still, the Internet light is OFF
     
  12. etaf

    etaf Moderator

    Joined:
    Oct 2, 2003
    Messages:
    65,355
    First Name:
    Wayne
    i would contact your ISP and talk to them about the problem - it maybe a fault on the line or a faulty modem
    they should be able to test that connection and tell you what needs to be done
     
  13. arcs

    arcs Thread Starter

    Joined:
    Jan 29, 2015
    Messages:
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    I have already contacted them but came out with no solution.
    But they told that there is a problem with your PC....
    So I contacted you....
     
  14. arcs

    arcs Thread Starter

    Joined:
    Jan 29, 2015
    Messages:
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    I'll contact them again and let you know about it... :)
    Thanks anyways...
     
  15. etaf

    etaf Moderator

    Joined:
    Oct 2, 2003
    Messages:
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    First Name:
    Wayne
    No problem with the PC _ if the modem internet light is OFF its a problem with the Modem or the Line to the ISP
    call them again and tell them that the modem light is OFF
     
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