// ngrok errors
ngrok error codes — reference + fixes
Plain-English meaning, the legitimate ngrok-side fix, and the equivalent flow on lrok where the error usually doesn't exist. Sorted by code; deep-link any entry by its slug.
Coded errors
- ERR_NGROK_108too many tunnels: causes and fix
- ERR_NGROK_708too many connections: how to fix
- ERR_NGROK_3004invalid host header: how to fix
- ERR_NGROK_3022local server not reachable: how to fix
- ERR_NGROK_3200tunnel endpoint offline: how to fix
- ERR_NGROK_4002TLS not supported on this domain: how to fix
- ERR_NGROK_4007TLS handshake failed: how to fix
- ERR_NGROK_6022auth failed: causes and fix
- ERR_NGROK_6024auth token revoked: how to recover
- ERR_NGROK_8012abuse warning page: how to fix
Symptoms without a specific code
Tired of chasing ngrok error codes? See lrok vs ngrok →