# Troubleshooting

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Not sure where to start? Try our [General Troubleshooting](https://app.gitbook.com/s/UOOiQ4S2QcMWmVoSmeQ8/troubleshooting-the-control-system/troubleshooting-the-control-system) first!
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<table data-view="cards"><thead><tr><th></th><th data-hidden data-card-cover data-type="files"></th></tr></thead><tbody><tr><td><strong>Control Hub</strong><br><br><a href="https://app.gitbook.com/s/UOOiQ4S2QcMWmVoSmeQ8/troubleshooting-the-control-system/control-hub-troubleshooting">Control Hub Troubleshooting</a><br><br><a href="https://app.gitbook.com/s/UOOiQ4S2QcMWmVoSmeQ8/troubleshooting-the-control-system/control-hub-troubleshooting#status-led-is-solid-blue-for-longer-than-30-seconds">Status LED is Solid Blue for Longer than 30 seconds?</a><br><br><a href="https://app.gitbook.com/s/UOOiQ4S2QcMWmVoSmeQ8/troubleshooting-the-control-system/control-hub-troubleshooting#cant-connect-the-control-hub-to-the-rev-hardware-client">Can't Connect the Control Hub to the REV Hardware Client</a></td><td><a href="https://3172778982-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FQpUff2Tw0aAY2K1UwemO%2Fuploads%2FdeuawqQa5kojcN9rYSzo%2FControlHub_GB-Card.png?alt=media&#x26;token=9fc4402f-4a81-4f03-aa67-86ae8239cd52">ControlHub_GB-Card.png</a></td></tr><tr><td><strong>Driver Hub</strong><br><br><a href="https://app.gitbook.com/s/UOOiQ4S2QcMWmVoSmeQ8/troubleshooting-the-control-system/driver-hub-troubleshooting">Driver Hub Troubleshooting</a><br><br><a href="https://app.gitbook.com/s/UOOiQ4S2QcMWmVoSmeQ8/troubleshooting-the-control-system/driver-hub-troubleshooting/driver-hub-battery-troubleshooting">Driver Hub Battery Troubleshooting</a><br><br><a href="https://app.gitbook.com/s/UOOiQ4S2QcMWmVoSmeQ8/troubleshooting-the-control-system/driver-hub-troubleshooting#most-common-issues">Most Common Issues</a></td><td><a href="https://3172778982-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FQpUff2Tw0aAY2K1UwemO%2Fuploads%2FEl2pT2jm2odKTMWcYgp2%2FDriverHub_GB-Card.png?alt=media&#x26;token=8da89471-fac4-4da3-bd52-31863214d4e2">DriverHub_GB-Card.png</a></td></tr><tr><td><strong>Expansion Hub</strong><br><br><a href="https://app.gitbook.com/s/UOOiQ4S2QcMWmVoSmeQ8/menu/adding-more-motors/adding-an-expansion-hub">Adding an Expansion Hub</a><br><br><a href="https://app.gitbook.com/s/UOOiQ4S2QcMWmVoSmeQ8/troubleshooting-the-control-system/expansion-hub-troubleshooting">Expansion Hub Troubleshooting</a><br><br><a href="https://app.gitbook.com/s/UOOiQ4S2QcMWmVoSmeQ8/troubleshooting-the-control-system/expansion-hub-troubleshooting#issues-connecting-control-hub-to-an-expansion-hub">Issues Connecting Control Hub to an Expansion Hub</a><br><br></td><td><a href="https://3172778982-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FQpUff2Tw0aAY2K1UwemO%2Fuploads%2FgF7vfKvMQpjCZ6Phq32j%2FExpHub_GB-Card.png?alt=media&#x26;token=02ddf01f-d46d-436d-abc6-cacf96f3d416">ExpHub_GB-Card.png</a></td></tr></tbody></table>

### Still Need Assistance? <a href="#still-need-assistance" id="still-need-assistance"></a>

Email the REV Support Team (**<support@revrobotics.com>**) with details of the troubleshooting information you have collected, such as the answers to the questions above and the outcome of your troubleshooting thus far. It will also help to send logs or other diagnostic data to REV Support.

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Need help getting the Log Files to send to REV Support? See [Downloading Log File](https://app.gitbook.com/s/UOOiQ4S2QcMWmVoSmeQ8/managing-the-control-system/downloading-log-file) for more information.
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