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Windows 7: The DNS Server Isn't Responding

24 Dec 2011   #1

Windows 7 32bit
 
 
The DNS Server Isn't Responding

I know a lot of people has posted about the same issue but none of the fixes work for me. My internet was working fine but since I got a new modem (Motorola SBG6580) the internet started to not work for a few minutes at a time but now it doesnt work at all. All of the sudden it started working again for about an hour and then it stopped working again. I have tried flushing the dns, renewing my IP, disabled firewall and anti virus. When I troubleshoot the connection I get this message "The DNS Server Isn't Responding". When I map my connection it shows that Im connected to the internet:




My System SpecsSystem Spec
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24 Dec 2011   #2
2xg
Microsoft MVP

Win7 & Win8 64bit
 
 

Hello,

Please provide an ipconfig /all output.
Click on the Start Menu search box area type cmd, right click on cmd see at the top, and click on Run as Administrator. From the command prompt (black screen), Copy and Paste these ipconfig /all >c:\ipconfig.txt . Please attach the .txt file to be found in your Local Disk 'C' on your next post.
My System SpecsSystem Spec
25 Dec 2011   #3

Windows 7 32bit
 
 

This is what I got:

Quote:
Windows IP Configuration

Host Name . . . . . . . . . . . . : Joel-PC
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Hybrid
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No

Wireless LAN adapter Wireless Network Connection:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : 802.11n Wireless LAN Card
Physical Address. . . . . . . . . : C8-3A-35-C6-AE-5E
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
IPv4 Address. . . . . . . . . . . : 192.168.0.6(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Lease Obtained. . . . . . . . . . : Sunday, December 25, 2011 11:26:52 AM
Lease Expires . . . . . . . . . . : Sunday, December 25, 2011 12:26:53 PM
Default Gateway . . . . . . . . . : 192.168.0.1
DHCP Server . . . . . . . . . . . : 192.168.0.1
DNS Servers . . . . . . . . . . . : 75.75.76.76
75.75.75.75
NetBIOS over Tcpip. . . . . . . . : Enabled

Ethernet adapter Local Area Connection:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Intel(R) 82579V Gigabit Network Connection
Physical Address. . . . . . . . . : E0-69-95-9A-D5-3A
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter Local Area Connection* 9:

Media State . . . . . . . . . . . : Media disconnected
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

Tunnel adapter Reusable ISATAP Interface {5C259D3C-CCDC-44ED-80D8-87BA1E614BC6}:

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

Tunnel adapter Reusable ISATAP Interface {7B565FA9-C59F-43BE-A5CC-6D193E187DE4}:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft ISATAP Adapter #5
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
P.S. "The internet is kinda working at the moment but its probably gonna stop working again at some point. Keep in mind that other computers with Windows 7 can connect fine to this modem."


Attached Files
File Type: txt ipconfig.txt (2.6 KB, 596 views)
My System SpecsSystem Spec
.


25 Dec 2011   #4
2xg
Microsoft MVP

Win7 & Win8 64bit
 
 

Your ipconfig /all output looks good on the Wireless one, wired shows disconnected. Is your issue on a wireless connection?
Do you have the latest drivers for your Network Adapters? You might want to verify that.

How's your wired connection?
My System SpecsSystem Spec
25 Dec 2011   #5

Windows 7 32bit
 
 

I'm only connected wirelessly. I do have the newest driver. Also at the time I got those results the computer was getting online. It just works out of nowhere and them it stops working all of a sudden
My System SpecsSystem Spec
25 Dec 2011   #6

Windows 7 32bit
 
 

This is what I get when the internet isn't working:

Quote:
Windows IP Configuration

Host Name . . . . . . . . . . . . : Joel-PC
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Hybrid
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No

Wireless LAN adapter Wireless Network Connection:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : 802.11n Wireless LAN Card
Physical Address. . . . . . . . . : C8-3A-35-C6-AE-5E
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
IPv4 Address. . . . . . . . . . . : 192.168.0.6(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Lease Obtained. . . . . . . . . . : Sunday, December 25, 2011 7:59:59 PM
Lease Expires . . . . . . . . . . : Sunday, December 25, 2011 9:04:48 PM
Default Gateway . . . . . . . . . : 192.168.0.1
DHCP Server . . . . . . . . . . . : 192.168.0.1
DNS Servers . . . . . . . . . . . : 75.75.76.76
75.75.75.75
NetBIOS over Tcpip. . . . . . . . : Enabled

Ethernet adapter Local Area Connection:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Intel(R) 82579V Gigabit Network Connection
Physical Address. . . . . . . . . : E0-69-95-9A-D5-3A
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter Local Area Connection* 9:

Media State . . . . . . . . . . . : Media disconnected
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

Tunnel adapter Reusable ISATAP Interface {2A859F9F-FFBF-49A6-B18E-68DFB95C102C}:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft ISATAP Adapter #5
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
My System SpecsSystem Spec
25 Dec 2011   #7

Windows 7 Pro 64bit build 7601 SP1
 
 

Your dns addresses are pointing to comcast DNSSEC servers which looks like they are still fairly new so there could still be bugs being worked out by Comcast and it's partners with it. Which is fine, maybe you should add additional dns servers as it's possible Comcast's servers could be having temporary issues. Trying using opendns, google dns or even norton has public dns servers now. Just google them and you can get their dns addresses to add to your config. If that doesn't help contact comast as it could be your modem having intermittent issues.
My System SpecsSystem Spec
25 Dec 2011   #8

Windows 7 32bit
 
 

I tried OpenDNS and Google DNS and I still get the same issue.
My System SpecsSystem Spec
25 Dec 2011   #9

Windows 7 Pro 64bit build 7601 SP1
 
 

Quote   Quote: Originally Posted by joelstitch View Post
I tried OpenDNS and Google DNS and I still get the same issue.
Did you try to change the dns address in the router as well? Possably in the modem as well?
My System SpecsSystem Spec
25 Dec 2011   #10

Windows 7 32bit
 
 

No because the other computers on the same network work fine. The.problem is just with my computer.
My System SpecsSystem Spec
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 The DNS Server Isn't Responding




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