How to Change DNS Settings on a Router?

Confirm the device and scope first

Set DNS for the whole home network while understanding WAN DNS, DHCP-advertised DNS, IPv6 and encrypted DNS. That means the exact router role matters: a mesh node, access point, ISP gateway, and primary router can expose different controls even when they share the same brand. Confirm which device owns the setting before applying the steps.

• Changing router DNS can affect clients that accept DNS information from DHCP, but devices/apps can override it.
• IPv4 and IPv6 DNS are configured separately on many routers.
• DoH/DoT is not automatically enabled simply because you changed resolver IP addresses.

Step-by-step

1. Record the current DNS and WAN settings so you can roll back.
2. Choose a resolver and verify its IPv4/IPv6 addresses from the provider.
3. Open Internet/WAN DNS or LAN/DHCP DNS, depending on whether you want the router to proxy DNS or advertise resolver addresses directly.
4. Apply both primary and secondary values if the UI requires them.
5. Renew the client DHCP lease or reconnect, then verify the resolver being used.

Verify from the path that matters

Once How to Change DNS Settings on a Router? is configured, test from the client, band, VLAN, or external connection that the setting is meant to affect. A check from the wrong side of NAT, the wrong SSID, or a cached session can make a correct configuration look broken.

Common mistakes to avoid

• ISP gateways may lock DNS fields.
• Parental-control/security services can intentionally intercept DNS.
• A VPN or browser secure-DNS setting can bypass router DNS.

Technical detail behind this task

If your goal is encrypted DNS, check whether the router explicitly supports DNS-over-HTTPS or DNS-over-TLS. Plain resolver addresses alone do not encrypt DNS. When a router advertises itself as DNS to clients, inspect whether it forwards to your chosen upstream resolver or the ISP.

Keep this task separate from unrelated troubleshooting

How to Change DNS Settings on a Router? should solve the problem described above; it should not become a reason to change DNS, reset the modem, disable security, or alter the LAN subnet unless evidence points there independently. Staying inside the relevant layer is what keeps the troubleshooting readable and recoverable.

Should I reset the router if this task fails?

Not simply because How to Change DNS Settings on a Router? did not work on the first attempt. A factory reset erases unrelated configuration. First restore the previous value, confirm the correct device and management path, and use the exact model recovery procedure only when configuration is genuinely unrecoverable.