Troubleshooting, FAQ

HTTPS and/or WSS doesn't work.

You need a CA (certificate authority) bundle file on your SD card. On a Linux system you may find it at /etc/ssl/cert.pem (Arch Linux symlinks this to /etc/ca-certificates/extracted/tls-ca-bundle.pem). On other distros you can dig around /etc/ssl to find what looks like a CA bundle file. By default, nds-shell will use tls-ca-bundle.pem (no preceding / means it's the root of the SD card) as the CA file path. To change this behavior, have CURL_CAFILE=my-ca-file in the environment before running curl, ws, or calling fetch() or using WebSocket in Lua.

wifi autoconnect always fails

You need to have a "stored connection" on your DS's NVRAM (very small but important internal storage). This is possible by running any licensed game that has the Nintendo WFC menu for managing stored connections. Once you add one there, running wifi autoconnect will use any of the stored connections for WiFi.