It’s not just you, most Nintendo Switch Online services are down right now
Update: Service has now been restored and full functionality is back.
Nintendo has a bit of a rough Sunday morning. At the moment, the Nintendo Switch eShop is down, but of greater concern is the ability to start digital games that require server validation.
—NinStatusBot (@NinStatusBot) June 5, 2022
This includes titles such as Nintendo Switch Online NES, SNES, N64 apps, etc. (if your consoles have not been verified in the last 7 days). This also means that DLCs for Mario Kart 8 Deluxe and Super Smash Bros. Ultimate cannot be validated, so you will be able to play these games, but without DLC. Some games like Pokémon Unite still work.
—NinStatusBot (@NinStatusBot) June 4, 2022
There is also an issue for those with a non-primary Nintendo Switch console as it requires online verification every time you start a game.
So far the servers have been down for just over 4 hours at the time of writing. Nintendo is now aware of it and has issued downtime notices, but when it returns, who can tell. There’s a Mario Strikers Battle League Football First Kick session coming up shortly, hopefully we can still keep it going.