PLEASE HELP:DNS server not responding

drhax

drhax

drhax

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27 Oct 2010
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I have just been setup with virgin and the internet isnt working and says dns server not responding. I have a superhub which is supplied via a cable not a phoneline.

I have windows vista and connected to the hub via wired. Now I still has the internet from sky via phoneline, they still havent fully canceled my connection, even though the sky account have been shutdown, so I can write this.

So I can connect to the the sky internet no problem but when I connect to the virgin media superhub via wired(my computer isnt wireless enabled), the internet is not coming through and windows reports the dns server isnt responding. I have checked with virgin and internet is being supplied by them and the hub is working. So im guessing my computer is blocking/has fault a connecting to the hub. I have looked over the web and cant find any solutions.

Thanks.
 
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1. Check your network adapter settings are set to obtain BOTH DNS server AND IP Address automatically.

2. Check the DNS server IP addresses supplied in your end user documentation match those configured on the router's DHCP settings.

3. IF the DNS server addresses are correct, try pinging them to verify they are reachable.

4. If they are not reachable, ping 173.194.37.104 (www.google.co.uk) to verify the connection is actually live and working.

If the answer to 3 or 4 is No then you need to contact your ISP to find out why not.

If the answer to 3 and 4 is yes then try replacing the second DNS server in DHCP options with an address from OpenDNS' list of servers, reboot your PC and try again. Sometimes DNS servers do go down, having openDNS as a backup is always helpful.
 
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Skidilliplop said:
1. Check your network adapter settings are set to obtain BOTH DNS server AND IP Address automatically. They do

2. Check the DNS server IP addresses supplied in your end user documentation match those configured on the router's DHCP settings. How?
3. IF the DNS server addresses are correct, try pinging them to verify they are reachable. How?
4. If they are not reachable, ping 173.194.37.104 (www.google.co.uk) to verify the connection is actually live and working.

If the answer to 3 or 4 is No then you need to contact your ISP to find out why not.

If the answer to 3 and 4 is yes then try replacing the second DNS server in DHCP options with an address from OpenDNS' list of servers, reboot your PC and try again. Sometimes DNS servers do go down, having openDNS as a backup is always helpful.
Click to expand...
 
2 - The default address and credentials will be supplied in your ISP documentation

3. open command prompt or type into the run prompt ping followed by the IP address
 
The only paper work I got about the ip adresses etc is a sticker on the hub. I pinged the ip address that is on the hub and it is reachable. I pinged the numbers you gave me and it didnt work. But Im not sure if the ip adresses match. I cant see any DHCP setting on my hub setting, I see a wan DNS ip and its differant then my default. But the default ip address is on the hub setting but cant find the dchp dns ip. I have phoned virgin and the internet is being supplied and the hub is working, so I think the problem is between the hub and my comp
 
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Ok if you can ping the IP on the sticker but not the google.co.uk one, DNS server addresses are irrelevant as you can't get out past your router.

In command prompt type ipconfig /all and paste the output and we'll work from there.
 
call virgin support?

they usually forget to ?register? the modems on the network... (which only they can do)

also have you turned it all off and back on again?
 
Windows IP Configuration

Host Name . . . . . . . . . . . . : Jamie-PC
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Hybrid
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No
DNS Suffix Search List. . . . . . : Home

Ethernet adapter Local Area Connection:

Connection-specific DNS Suffix . : Home
Description . . . . . . . . . . . : Intel(R) PRO/100 VE Network Connection
Physical Address. . . . . . . . . : 00-1B-FC-F9-9A-B1
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
Link-local IPv6 Address . . . . . : fe80::80bd:5eba:5f0f:326d%11(Preferred)
IPv4 Address. . . . . . . . . . . : 192.168.0.2(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Lease Obtained. . . . . . . . . . : 05 January 2011 10:29:10
Lease Expires . . . . . . . . . . : 05 January 2011 13:09:14
Default Gateway . . . . . . . . . : 192.168.0.1
DHCP Server . . . . . . . . . . . : 192.168.0.1
DHCPv6 IAID . . . . . . . . . . . : 134224892
DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-14-43-72-27-00-1B-FC-F9-9A-B1

DNS Servers . . . . . . . . . . . : 194.168.4.100
194.168.8.100
NetBIOS over Tcpip. . . . . . . . : Enabled

Tunnel adapter Local Area Connection* 6:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Teredo Tunneling Pseudo-Interface
Physical Address. . . . . . . . . : 02-00-54-55-4E-01
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
IPv6 Address. . . . . . . . . . . : 2001:0:5ef5:79fd:248c:8da:3f57:fffd(Prefe
rred)
Link-local IPv6 Address . . . . . : fe80::248c:8da:3f57:fffd%8(Preferred)
Default Gateway . . . . . . . . . : ::
NetBIOS over Tcpip. . . . . . . . : Disabled

Tunnel adapter Local Area Connection* 12:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . : Home
Description . . . . . . . . . . . : Microsoft ISATAP Adapter #3
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes


I have phoned virgin and they have activated it. Also tried turning it on and off etc.
 
Ok I'm guessing the IP on the sticker matches the one under default gateway there, 192.168.0.1.

Try running 'tracert 173.194.37.104' from command prompt.
Then 'tracert 194.168.4.100'

Just a note from the spool you've pasted is you probably would benefit from un ticking TCP/IP Version 6 and netbios over tcpip in the network adapter properties. You don't need them.
 
My internet is working now but it worked for a very short while last time and went off, will this fix it? Thanks a lot btw.
And will this fix the problem altogether?
 
none of this is a fix, this is just diagnostic testing to find the cause of the problem. If it's randomly starting and stopping working then it's likely an ISP issue.

the ping and traceroute tests just plot the path of a data packet from your PC to a remote host and back. They just test to see if your connection is working. Web browsing has two parts, IP connectivity (tested by ping) and name resolution, which converts the URL into an IP address.
All you'd done so far is rule out name resolution as the problem and narrow it down to part of the raw data connection.
Whatever happened has been resolved by someone/something else in the meantime.

Not to sound too synical but the fact you rang up and asked if it was activated and were told yes and miraculously it starts working shortly after probably means it wasn't and someone has just chased it up.
BT for example are specialists in telling you there isn't an issue and it miraculously fixing itself within a few hours. Despite being broken for days before you called them :)
 
Its still working, so does that mean thats its unlikey to be computer related or that my pc is blocking the hub, and that its the ISP taking time to stabilize my connection?
 
Yep more than likely the ISP. In future though if it cuts out and you can ping 192.168.0.1 then it's not your home network.
Essentially if it's all set up on defaults, if you can ping 192.168.0.1 but not the IP of google then it's either the router or your line, both of which arn't your problem your ISP look after them.
 
A lot of people report issues with the VM DNS servers - 194.168.4.100 and 8.100 - and replace with in the routers config with OpenDNS or Google DNS servers or similar.

I found I had problems from day 1 with them timing out and such like and I swapped to OpenDNS. That recently started to run very slowly for me so ran a DNS server testing tool (can't remember it's name off the top of my head) and it suggested Google and BT DNS servers to be the fastest and more reliable so I have 1 of each set and I've not had any problems so far.
 
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