Set up a new Internet connection, ensuring that you are attempting to connect to the correct network, and that you are receiving a strong wireless signal from the network.

Restarting your network devices may resolve this issue if is caused by the devices being unresponsive. Ensure you wait until all network devices power back on again prior to performing a connection test on the Nintendo Switch console.

If the Nintendo Switch console is unable to obtain an IP address from the wireless router, manually entering the IP address, subnet mask, and gateway into the console's settings may allow you to connect.

If possible, place the Nintendo Switch within 10 to 15 feet of the wireless router to improve the signal strength during troubleshooting.

Metal objects and electronic devices may interfere with wireless signals. If you have any of these, such as filing cabinets, speakers, power strips, glass, or cordless phones, next to your console or wireless router, move them away.