DNS Server not working

cuse165

June 24, 2018 00:00

I added a DNS that blocks adds when I am online I see every add there is so I tried another DNS same thing so the I tried opendns and same thing as the other two. My router is like bypassing my settings and not using any of my DNS. There is a page that tells you if you are connected to there DNS servers. One time it says I am and another time it says I am not. Anyone know anything or can help or know why my router is not using my settings and bypassing them? All the time I am online

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9 comments

rotblitz June 24, 2018 15:09 (Edited June 24, 2018 15:12)
Open a command prompt window on your computer, and copy & paste the complete plain text output of the following diagnostic commands to here:
```
nslookup -type=txt debug.opendns.com. 208.67.220.220
nslookup -type=txt which.opendns.com.
nslookup whoami.akamai.net.
netsh interface ipv4 show config
netsh interface ipv6 show dns
```
Also, what exact router model do you have? Can you post a screen shot of where you have configured the OpenDNS addresses?
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cuse165 June 24, 2018 18:11

I will try that. I don't get a error or can't really take a screen shot. I can just tell it's not using the DNS Servers just by browsing the Internet. The DNS Servers are not doing what they say they do. That's how I can just tell. I read on some networking websites that it is technically possible for ISPS to override user's DNS with a default one, and some service providers are doing this. Has anyone heard of this could it be true?

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rotblitz June 25, 2018 11:50

This is true. But I can only say what your problem is if I see the command outputs. Else I even cannot guess.

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cuse165 June 25, 2018 20:31

Pictures and Info:https://1drv.ms/f/s!AtxxebpM5QtOgr1mFfMv4dnC49d1qw

Its a NETGEAR Modem and Router in one C6300

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rotblitz June 25, 2018 21:13 (Edited June 25, 2018 21:18)

Why didn't you post this stuff here instead of uploading it to OneDrive? Whatever,...

As I can see, you're not using OpenDNS, but your ISP's DNSv6 service:

Server: UnKnown
Address: 2001:1998:f00:1::1

Clearly not an OpenDNS resolver address! Same as IPv4, you must configure also the IPv6 side on the router or on the computer with addresses from the following list:
::ffff:d043:dede ::ffff:d043:dcdc ::ffff:d043:dedc ::ffff:d043:dcde

And you forgot to post the output of the last command.

Another problem is this:

You have configured a non-OpenDNS address 198.101.242.72 as 3rd DNS server address. Replace this by an OpenDNS address: 208.67.222.220 or 208.67.220.222.

After having applied these two fixes, everything should work fine. It has nothing to do with your ISP or your router; it was just wrong or missing configuration.

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jonathan June 26, 2018 15:01

Hi rotblitz, I'm having a similar problem. I've been connected to opendns for a couple of years now and not made any changes but recently have noticed sites not being filtered. the Welcome to OpenDNS test page shows I am not connected, but my router's DNS settings are as above - 208.67.222.222 & ...220.220. I have a DrayTek Vigor 2860, screenshot here:

Any ideas where it's going wrong?

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rotblitz June 26, 2018 16:50

@jonathan, can you please open an own thread instead of hi-jacking this one? And I need to see the command outputs.

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cuse165 June 26, 2018 20:00

Thank you for your answer I will mark it as answered. In my router you can not change the DNS for IPv6.

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rotblitz June 26, 2018 20:02

Then you may have the option to disable IPv6 connectivity. Or configure the addresses above on the end user devices.

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