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Can not access DNS data for dynamic DNS service through router

Can not access DNS data for dynamic DNS service through router

Can not access DNS data for dynamic DNS service through router
Can not access DNS data for dynamic DNS service through router
2025-06-01 10:10:56
Model: Archer AX1500  
Hardware Version: V1
Firmware Version: 1.3.11

Hello,

 

I am having issues with DNS lookup for a dynamic DNS service used for home automation (Home assistant using duckdns). I can not access neither the duckdns web interface nor the home assistant server itself (it is connected to the router including port forwarding etc.). The router is in DHCP mode and directly connected to internet via the ISP fiber connection box.

 

All other traffic and DNS lookups seems to work, it is only when I try to access the duckdns servers using the router that does not work. DNS lookups are fine when I bypass the router and connect directly to the ISP (computer receives IP and DNS servers directly from ISP), so there are no blacklisting of duckdns at my ISP. Have also tried different DNS servers, both those provided by the ISP, and the Google DNS but they both provide same errors when trying to access through the router. 

 

I have also tried to use the diagnostic tools of the router, and I can not ping neither duckdns nor the IP adress that is given by online DNS lookup tools.

 

Is there a reason why the router would (silently) block this specific service? Or is there a collision with the internal DDNS services provided by the router (TP-link, dyndns, no-ip etc.)? Neither of those services is turned on in my router.

 

Thanks in advance for guidance on this topic.

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#1
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3 Reply
Re:Can not access DNS data for dynamic DNS service through router
2025-06-04 08:13:01

Hi@A_Ulf,

Thank you for contacting our community.

 

For your issue, please check if you set blacklist on access control? 

Did you set parental control on the router? If yes, turn it off for a try.

Please disable IPv6 if you have enabled it.

Please change DNS server to 8.8.8.8 and 1.1.1.1, refer to How to Change the DNS servers on the wireless router and DSL modem router (New UI)

 

Best Regards.

Check Out the Latest Posts: △ Pre-release Firmware for Archer AX80 Supports EasyMesh in AP Mode, DoH/DoT, ECO Mode, and More △Introducing AI QoS: Elevate Your Gaming Experience on the Archer GE800 Gaming Router △Connect TP-Link Archer BE550 to Germany's DS-Lite (Dual Stack Lite) Internet via WAN △ Tether KidShield Test Recruitment - Safeguarding Children's Online Experience
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#2
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Re:Can not access DNS data for dynamic DNS service through router
2025-06-04 20:22:33

  @Joseph-TP Thank you for the answer, really appreciated. See my answers in bold below.

Joseph-TP wrote

Hi@A_Ulf,

Thank you for contacting our community.

 

For your issue, please check if you set blacklist on access control? - Access control disabled

Did you set parental control on the router? If yes, turn it off for a try. - No parental control enabled

Please disable IPv6 if you have enabled it. - IPv6 disabled

Please change DNS server to 8.8.8.8 and 1.1.1.1, refer to How to Change the DNS servers on the wireless router and DSL modem router (New UI)

- I tried the dig command with my duckdns domain (dig my_domain . duckdns . org @1.1.1.1 or @8.8.8.8) and only 1.1.1.1 can give me the correct IP, when connected to the AX1500 router. I have now updated DNS servers in the router to 1.1.1.1/1.0.0.1 and that seems to fix the problem with connecting to duckdns. Anyway, quite strange that the google DNS can't resolve the IP? There seems to be differences in the answers from the different DNS servers - 8.8.8.8 answers with a "OPT PSEUDOSECTION:" part, that is not at all present in the response from 1.1.1.1.

 

Unfortunately, my problems are not completely solved yet. When trying to connect to my home assistant server from inside my network, I still can not get contact when using the external IP, or the duckdns domain. Webserver can not be reached, and ping does not work either. It seems that the NAT loopback doesn't work as it should - I was expecting NAT loopback/hairpinning to work with the AX1500?

 

Thank you in advance,

Ulf

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#3
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Re:Can not access DNS data for dynamic DNS service through router
2025-06-06 08:49:12

Hi@A_Ulf,

Thanks for your detailed reply.

We have reported the issue to the support engineers, they will likely reach out to you via email to continue to troubleshoot your issue. Please check your email box and confirm.

Check Out the Latest Posts: △ Pre-release Firmware for Archer AX80 Supports EasyMesh in AP Mode, DoH/DoT, ECO Mode, and More △Introducing AI QoS: Elevate Your Gaming Experience on the Archer GE800 Gaming Router △Connect TP-Link Archer BE550 to Germany's DS-Lite (Dual Stack Lite) Internet via WAN △ Tether KidShield Test Recruitment - Safeguarding Children's Online Experience
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#4
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