# Amazon IoT Core troubleshooting guide
<a name="iot-core-troubleshooting"></a>

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This is the troubleshooting section for Amazon IoT Core.

**Topics**
+ [Diagnosing connectivity issues](diagnosing-connectivity-issues.md)
+ [Diagnosing rules issues](diagnosing-rules.md)
+ [Diagnosing problems with shadows](diagnosing-shadows.md)
+ [Diagnosing Salesforce IoT input stream action issues](diagnosing-salesforce.md)
+ [Diagnosing Stream Limits](diagnosing-stream-limits.md)
+ [Troubleshooting device fleet disconnects](ota-troubleshooting-fleet-disconnects.md)