Too many connections! The tunnel session <SESSION> has
violated the rate-limit policy of <THRESHOLD> connections
per minute by initiating <COUNT> connections in the last
<SECONDS> seconds. Please decrease your inbound connection
volume or upgrade to a paid plan for additional capacity.
If you're having trouble resolving this error, please reach out to support@ngrok.com.
ngrok limits the number of inbound connections to your tunnels. Limits are imposed on connections, not requests. If your HTTP clients use persistent connections aka HTTP keep-alive (most modern ones do), you'll likely never hit this limit. ngrok will return a 429 response to HTTP connections that exceed the rate limit. Connections to TCP and TLS tunnels violating the rate limit will be closed without a response.