# Troubleshooting<no value>

## Q: I just setup an instance but I am unable to login

mCaptcha by default is configured to server at `localhost` hostname. If
the instance is deployed at another hostname, please try setting
`MCAPTCHA_SERVER_DOMAIN` environment variable to the hostname at which
your instance is deployed or setting the equivalent in config.toml:

```toml
[server]
domain=mydomain
```