Cannot Connect to Any Asus Website with an RT-AX86U Pro Router

[Tattz The Bear]

This issue is really wierd. I cannot connect to any Asus URL or website. It's as if my IP has been blocked by Asus.
I first noticed this when I became aware of the latest firmware update and my router did not automatically flag it and also would not conect to the Asus update server. So I thought I would manually download it but when I tried to go to the Asus website I got the dreaded DNS_PROBE_FINISHED_NXDOMAIN message.
My first suspicion was that my DNS server (I use adguard) was causing the problem so tried several different DNS servers but no change. I tried flushing ther DNS cache; No good. I uninstalled the server certificate and reverted to a LetsEncrypt one, nothing changed.
But then I noticed that if I turned on my VPN I could access the Asus website no problem but couldn't access my own router via the GUI. So I downloaded the new firmware and installed it hoping that this might fix the problem but it didn't.
I've written to both my ISP and Asus but have yet to receive a reply.
I have IPv6 activated. Could this be a cause?
Everything else seems to work fine and I can access every website on the planet apart from Asus.
Can any of you brainiacs out there suggest what is causing this or is it that Asus just don't like me?

 

[bennor]

If you haven't tried already, use the router GUI Network Tools to Ping the Asus website that is giving you the DNS_PROBE_FINISHED_NXDOMAIN message. That may help narrow down the issue to either a upstream or router configuration issue or a problem with the local network client you are using.

As a troubleshooting step, disable IPv6 on the router, then reboot the router and network client and test if the issue persists.

 

[Tattz The Bear]

Thanks for that. Yep, I tried pinging asus.com and all seems fine. No packet loss.
I even got my ISP to give me a new IP address but the problem remains.
I'll give your suggestion of disabling IPv6 a go tomorrow and will report back on the outcome.

 

[ColinTaylor]

This issue is really wierd. I cannot connect to any Asus URL or website. It's as if my IP has been blocked by Asus.

This sounds like this malware:

Manually DHCP List and Domain Name Showing Unremovable Items

I used WireGuard to connect two routers, RT-AX86U & GT-AX6600 running newest merlin firmware, and everything was working fine. However, over the past few days I noticed something strange: ．In both routers, the manual DHCP list and the domain name field started showing unusual entries that I...

www.snbforums.com