On a Nighthawk, DNS is one of the internet settings in the router's web interface at routerlogin.net, and most people should leave it on the provider's automatic setting. Only change it for a reason, such as sites that fail while other traffic works or an unreliable provider resolver. Enter the addresses, save, and load several pages you have not opened recently. NETGEAR's community guidance notes that Circle and Armor take over DNS handling, so custom DNS settings can be ignored until those services are switched off,
The checks in more detail
and NETGEAR's troubleshooting index lists login and general problems that block reaching the settings page at all. Some devices override the router with private DNS, and a VPN on the device will use its own resolver. If sites fail after the change, go back to automatic. A router-level DNS change affects every device, which is useful and risky in equal measure. Before blaming DNS, run NETGEAR's direct-to-modem test from the slow-connection article, because a provider outage looks just like a DNS fault.
Keep a note of the previous values and of the date, and re-check them after any factory reset, which restores the automatic setting. DNS changes are simple to undo, so try them singly. A site that loads on mobile data but not at home suggests DNS or a filter, and ten minutes on another DNS server is an easy test. A few devices carry their own private DNS setting that overrides the network's, so when one device differs, check it before altering the router again.
If you turn on Circle or Armor later, a custom DNS you set may stop applying, so note why you changed it and re-check afterwards. Enter a second address as well as the first when you change DNS so that a failure of one server does not take your browsing down, and write the pair somewhere you can find in a year. If you use a filtering resolver, note that it may block sites you expect, so test a known-good page before concluding the setting is broken.
Differential
Likely causes of “NETGEAR Nighthawk routers cannot open websites because DNS fails”, and how to tell them apart
- 1
Circle or Armor active
What separates it The DNS change is ignored because Circle or Armor now handles DNS
How to confirm Turn Circle and Armor off, then enter your own DNS servers
- 2
A typo
What separates it Sites fail to load because a DNS address was mistyped
How to confirm Fix the address you typed, or revert to automatic
- 3
A device private DNS
What separates it One device differs because it uses its own private DNS
How to confirm Switch the device's private DNS off so it uses the network's DNS
- 4
A provider outage
What separates it It looks like DNS but is really a provider outage
How to confirm Test at the modem with a computer plugged straight in to see whether the internet works there
- 5
A reset
What separates it The custom DNS has gone because a reset restored the automatic setting
How to confirm Enter the custom DNS again in the internet settings, and save the change
Before you touch a setting
Record this first — changing settings destroys the evidence
- The DNS addresses entered in the router
- Whether Circle or Armor is on
- What fails to load and what still works
- The result of testing with a computer connected to the modem
Try in this order
0 of 7 completedSign in
ReversibleSign in to the router at routerlogin.net, using the admin account and your password, and then test again to see whether it helped.
Open internet settings
ReversibleOpen the internet settings, and find the DNS option on that page of the settings.
Enter the addresses
ReversibleEnter the addresses of the DNS servers that you want, and save the changes, and then test again to see whether it helped.
Test
ReversibleTest by opening pages you have not visited before.
Check Circle and Armor
ReversibleCheck Circle and Armor, since they can override the DNS settings that you enter, and then test again to see whether it helped.
Revert if needed
ReversibleRevert if needed, by switching the DNS back to the automatic setting from the provider.
Test at the modem
ReversibleIf unsure of the cause, test at the modem with a computer connected straight to it.
Model-specific
What is true of this model and not of its siblings
- Security services
- Armor and Circle are NETGEAR subscriptions that filter traffic.
- Cable models
- On the CAX80 the modem side is managed by your cable provider.
- Other models this page answers
- These steps also fit the Nighthawk RS300 Wi-Fi 7 router, Nighthawk RAX120 router, Nighthawk RAX50 router, Nighthawk CAX80 cable modem router.
Stop boundary
When this stops being a self-service repair
- !Sites that fail on other DNS servers too are a call to the provider
- !If the settings page will not load, follow the login article
- !When only one device fails, check its DNS
Evidence ledger
Sources behind this answer
The list of NETGEAR troubleshooting articles.
Firmware, power cycle and direct modem test.
Enabling parental controls.
Seven-second reset and default login.
The company and its products.
Exact questions
Common questions
Where do I set DNS?+
You set the DNS in the router's internet settings, on its web page at routerlogin.net.
Should I change it?+
Only with a reason, since the provider's automatic setting works well for most people.
Does Armor affect it?+
Armor handles DNS itself, so a custom DNS setting may not apply.
What does a reset do?+
A reset restores the automatic setting, so you must enter any custom DNS again.
Does DNS speed up downloads?+
No, DNS does not speed up downloads, and it only changes the speed of lookups.
What if sites fail?+
If sites fail, revert to automatic, and then test again.
Can a provider outage look like DNS?+
Yes, a provider outage can look like a DNS problem, so test at the modem.
Do I need to restart?+
Apply the change and test it, since you do not always need to restart the router.