Turn on your Nintendo Switch console and go to the Home Menu.
Go to System Settings → Internet.
Select the Wi-Fi network for which you want to change the DNS settings.
Click Change Settings for the selected Wi-Fi network.
Scroll down and select DNS Settings.
Select Manual and then enter the primary DNS server address.
Default servers
AdGuard DNS will block ads and trackers.
94.140.14.14
94.140.15.15
Non-filtering servers
AdGuard DNS will not block ads, trackers, or any other DNS requests.
94.140.14.140
94.140.14.141
Family protection servers
AdGuard DNS will block ads, trackers, and adult content and enable Safe Search and Safe Mode, where possible.
94.140.14.15
94.140.15.16
(Optional) Enter the secondary DNS server address. This is a backup DNS server that your Nintendo Switch will use if the primary DNS server is unavailable.
Default servers
AdGuard DNS will block ads and trackers.
94.140.14.14
94.140.15.15
Non-filtering servers
AdGuard DNS will not block ads, trackers, or any other DNS requests.
94.140.14.140
94.140.14.141
Family protection servers
AdGuard DNS will block ads, trackers, and adult content and enable Safe Search and Safe Mode, where possible.
94.140.14.15
94.140.15.16
Select Save to save your DNS settings.
Reconnect to the Wi-Fi network to apply the changes.