If you're seeing the error: 

```
The network agent for x is not connected. Please check its connection and try again.
```

Or similar, then most likely the agent is either not running, or currently unable to connect to our servers. (The `deploy-agent` commands below apply to the legacy Ruby agent — if you have not migrated yet, follow [Migrating from the Ruby deploy-agent to network-agent](/support/migrating-to-network-agent).) You can run the following on the server that is running the agent, in order to check this: 

```
$ deploy-agent status
```

Which will tell you whether the agent is running or not. If it isn't running, you can start it with the following command: 

```
$ deploy-agent start
```

If it is running, you can debug the issue by using the following command which will show you the last ten lines of the log file: 

```
$ tail -n 10 ~/.deploy/agent.log
```

And if necessary, you can restart the agent again with a `--verbose` flag:

```
$ deploy-agent start --verbose
```

To add additional logging to the log file.