Why does my Nintendo Switch keep needing setting up again?

The short answer

The built-in connection test is helpful once you find it. Repeated re-pairing nearly always means the gadget is losing its place on the network, not that it is faulty.

What's happening underneath

Wi-Fi 5 or Wi-Fi 6 client where steadiness matters far more than raw speed. Keep the console on the main network so incoming connections work.

Source: Manufacturer documentation

Try these, in this order

• • Run the console's own internet connection test from the dock's usual spot.
• • Use a USB network adapter in the dock for downloads — cheap and transformative.
• • Move the dock out from behind the TV.
• • Check the signal where the gadget actually lives, not where you're standing.
• • Move the router off the floor and out of any cupboard before buying anything.
• • Put the gadget and your phone on the same Wi-Fi name.
• • Restart the gadget before the router — it is quicker and it fixes more.

Setting it up again properly

• • Stand next to your router while you set it up, then move the gadget to where it lives.
• • Put your phone on the 2.4 GHz network name for the setup, or use one name for both bands so the phone can follow.
• • If your router splits bands into two names, turn the 5 GHz one off for five minutes rather than fighting it.
• • Turn mobile data off on your phone during setup — some apps quietly use it and never find the gadget.

When it's worth spending money

A wired USB adapter first; mesh only if other devices in that room also struggle.