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DNS Server not responding help

6K views 3 replies 2 participants last post by  etaf 
#1 ·
Hi I am new to the forum and hope its OK to post here. I apologise if I have posted on the wrong topic!! MY internet was working fine up until yesterday and then suddenly it loads a page and the pager times out. I have rebooted the router, I the ran a troubleshooter and it said the DNS Server is not responding (I am on BT Broadband in the UK). I ran diagnostics on my router and it says: -


Test Internet surfing
Test xDSL Synchronization Pass
ATM OAM Segment Ping Pass
ATM OAM end to end Ping Pass
Test PPP Server connection Pass
Test authentication with ISP Pass
Test the assigned IP address Pass
Ping default gateway Fail
Ping primary Domain Name Server Fail
Test DNS Root Fail
Network Connection Status Inspect(NCSI) Fail
Diagnostics completes


I am at a loss as to what to do now and just wondered if some kind person might have some ideas. I would appreciate any help. Kind regards Gail
 
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#2 ·
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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.
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#3 ·
HI, thanks for the details are: -


Windows IP Configuration

Host Name . . . . . . . . . . . . : first-24d7e65cc
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Hybrid
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No
DNS Suffix Search List. . . . . . : home

Wireless LAN adapter Local Area Connection* 11:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft Wi-Fi Direct Virtual Adapter
Physical Address. . . . . . . . . : 10-FE-ED-21-9F-4A
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes

Wireless LAN adapter WiFi:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : 802.11n USB Wireless LAN Card
Physical Address. . . . . . . . . : 10-FE-ED-21-9F-48
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes

Ethernet adapter Ethernet:

Connection-specific DNS Suffix . : home
Description . . . . . . . . . . . : Broadcom NetXtreme 57xx Gigabit Controller
Physical Address. . . . . . . . . : 00-12-3F-CC-E0-09
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
Link-local IPv6 Address . . . . . : fe80::6d05:9994:4fba:37fa%2(Preferred)
IPv4 Address. . . . . . . . . . . : 192.168.1.77(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Lease Obtained. . . . . . . . . . : 28 December 2014 13:39:18
Lease Expires . . . . . . . . . . : 29 December 2014 13:39:51
Default Gateway . . . . . . . . . : 192.168.1.254
DHCP Server . . . . . . . . . . . : 192.168.1.254
DHCPv6 IAID . . . . . . . . . . . : 251662911
DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-1A-E3-11-32-00-12-3F-CC-E0-09
DNS Servers . . . . . . . . . . . : 192.168.1.254
NetBIOS over Tcpip. . . . . . . . : Enabled

Tunnel adapter Local Area Connection* 13:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Teredo Tunneling Pseudo-Interface
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
IPv6 Address. . . . . . . . . . . : 2001:0:9d38:6abd:15:29bd:a97a:e6ab(Preferred)
Link-local IPv6 Address . . . . . : fe80::15:29bd:a97a:e6ab%7(Preferred)
Default Gateway . . . . . . . . . : ::
DHCPv6 IAID . . . . . . . . . . . : 117440512
DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-1A-E3-11-32-00-12-3F-CC-E0-09
NetBIOS over Tcpip. . . . . . . . : Disabled

Tunnel adapter isatap.home:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . : home
Description . . . . . . . . . . . : Microsoft ISATAP Adapter #2
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
 
#4 ·
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

lets see the following please

Three Ping tests

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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 192.168.1.254
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
For your information only
these tests will check various stages of the connection, the first ping test, ping default gateway checks to see if you still have a connection to the router.
The next two Ping google.com & Ping 209.183.226.152 tests the connection to internet. google is to test by name and the ping test using a number is checking that a connection exists without DNS.
these tests then confirm if there is a dns issue on the connection.


if you see on the results a
"general Failure"
PING: transmit failed. 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

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