OpenDNS Stopped Working (Archer C9)

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7 comments

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    rotblitz (Edited )

    "the IP address in OpenDNS settings still matches my network's IP"

    This and your dashboard is irrelevant as long as you don't use OpenDNS as of http://welcome.opendns.com/.  Therefore "I have removed and re-added the network" was pretty useless.  You must first use OpenDNS before your dashboard can come into the game.

    I will try to help you.  But I need more information.  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.

     

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    dannygirl (Edited )

    Thank you for your reply.

    I had been using OpenDNS and receiving stats for two weeks before it suddenly stopped working, so I simply figured clearing everything and following all the steps I had completed initially might fix the problem, in pure desperation ;)

    The output was:

    nslookup -type=txt debug.opendns.com. 208.67.220.220
    Server: resolver2.opendns.com
    Address: 208.67.220.220

    opendns.com
    primary name server = auth1.opendns.com
    responsible mail addr = noc.opendns.com
    serial = 1556290594
    refresh = 16384 (4 hours 33 mins 4 secs)
    retry = 2048 (34 mins 8 secs)
    expire = 1048576 (12 days 3 hours 16 mins 16 secs)
    default TTL = 2560 (42 mins 40 secs)
    nslookup -type=txt which.opendns.com.
    Server: resolver1.opendns.com
    Address: 208.67.222.222

    Non-authoritative answer:
    which.opendns.com text =

    "I am not an OpenDNS resolver."
    nslookup whoami.akamai.net.
    Server: resolver1.opendns.com
    Address: 208.67.222.222

    Non-authoritative answer:
    Name: whoami.akamai.net
    Address: 90.207.224.39
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    rotblitz

    It looks like something interferes with your DNS traffic and redirects it to Sky's DNS service.  You should call up your ISP (Sky) to see if you can opt out from the DNS traffic redirection.  Alternatively, try with https://dnscrypt.info/ to circumvent this restriction.

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  • Avatar
    dannygirl

    Okay, thank you for your help. I'll look into DNSCrypt.

    I hadn't thought Sky could be to blame initially as it had been working perfectly fine for a fortnight.. Is this a common thing do you think?

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    rotblitz

    No idea.  I do not have any experience with this ISP.  However, several threads here in the forum indicate that some ISPs occasionally start doing this, not necessarily for all their customers.  And if you call them, they often allow to opt out.

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    dannygirl (Edited )

    Thank you.

    It now appears the Sky forums are suddenly filling with topics discussing a transparent DNS change Sky Broadband made (at least in the UK), directing all DNS traffic through themselves, so this is going to be pretty wide-spread (and they didn't even notify us!)

    The Sky Broadband telephone and live chat support have been unable to assist with any solutions, and it's not looking like there is anything I can do to bypass this, with my current router's firmware.

    I'll keep watching in the Sky forums.

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    rotblitz (Edited )

    Fingers crossed that this leads to some solution.

    This seems to be the main threads currently:
    https://helpforum.sky.com/t5/Broadband/Sky-router-ignoring-dns-settings/m-p/2994097
    https://helpforum.sky.com/t5/Broadband/Sky-hub-ignoring-devices-DNS-settings/td-p/2989332

    But there's hope at the end of the second thread:

    • Thanks for your patience.

      We’ve identified the root cause and are working towards a permanent solution.

      In the meantime, if you think you’re impacted by the issue described in this thread, contact Sky.

      An agent will run through some steps and if required, escalate your case to our network team who may need to update your Sky Hub (7days).

      Mark
      Community Manager 

    Until then, as a temporary workaround, you could install DNSCrypt on your computer and maybe on other devices.

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