<!-- 0Gkit docs — CHAIN_RPC_UNREACHABLE
     Source: https://docs.0gkit.com/errors/CHAIN_RPC_UNREACHABLE
     LLM-friendly Markdown twin of the page. -->

# CHAIN_RPC_UNREACHABLE

**RPC endpoint unreachable**

## What happened

A JSON-RPC call to the configured 0G node failed — network down, DNS error, wrong URL, or rate-limited.

## How to fix

Run `0g doctor` to ping the configured RPC. If your network is fine, the public Galileo RPC may be rate-limiting — provide your own via `--rpc` or `ZEROG_RPC_URL`.

## Example

```ts
0g doctor
0g chain balance 0xabc... --rpc https://my-own-galileo-rpc.example
```

## Reference

- Namespace: `CHAIN`
- Help URL: `https://0gkit.com/errors/CHAIN_RPC_UNREACHABLE`
- See also: [all error codes](/errors)