NETGEAR is aware of a growing number of phone and online scams. To learn how to stay safe click here.

Forum Discussion

pomopodo's avatar
pomopodo
Follower
Oct 11, 2021

R6400 dns problem

i think i have a problem with my R6400 firmware. every time I try to open any page it gives me a dns problem. can you help me solve this problem thanks?

3 Replies

  • plemans's avatar
    plemans
    Guru - Experienced User
    Oct 11, 2021

    Try downgrading the firmware a version or 2. the latest round of updates caused dns issues. 

    So download the older firmware and install it using the manual firmware update process. 

    • michaelkenward's avatar
      michaelkenward
      Guru - Experienced User
      Oct 12, 2021
      plemans wrote:

      Try downgrading the firmware a version or 2. the latest round of updates caused dns issues. 

       

      If that doesn't work., it might help to tell people what this "dns problem" problem is.

  • vjayer's avatar
    vjayer
    Tutor
    Oct 12, 2021

    I've had this same problem for a while too. I just posted this another thread:

    https://community.netgear.com/t5/General-WiFi-Routers-Non/r6400/m-p/2112674/highlight/false#M150212

     

    I think I found the solution:

    Windows by default now prioritizes / prefers ipv6 name resolution
    i.e. nslookup <hostname>
    shows ipv6 addresses first, then ipv4

     

    To change setting to allow this default Windows 10+ configuration,
    in the netgear R6400 gui:

    Advanced > Advanced Setup > IPv6
	Internet Connection Type: [Auto Detect] > Apply
- after a short time, resulted in [DHCP] for me with:
	Router's IPv6 Address On WAN: <... ipv6 address from your ISP ...>
	IPv6 Domain Name Server (DNS) Address > Get Automatically from ISP
	IP Address Assignment > Auto Config

    So far I've had good luck by enabling ipv6 on the router. All proper DNS lookups resolve on the first try