# Common Issues

```
RuntimeError: DHTNode bootstrap failed: none of the initial_peers responded to a ping.
```

This error results when a connecting node can't connect to a bootnode. This can be the result of an incorrect bootnode address, or an authorizer error, such as a proof of stake failure, or signature validation failure.

Make sure the `.env` file has the correct bootnodes, or the server is retrieving the correct bootnodes another way. If the subnet is relying on the `.env` file, any changes to it must be built with `pip install .` for those changes to take effect.

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