# Troubleshooting Reachability Analyzer
<a name="reachability-analyzer-troubleshooting"></a>

The following error messages are returned by Reachability Analyzer:

**The request failed due to insufficient permissions**  
Verify that you have the required permissions. For more information, see [Required API permissions for Reachability Analyzer](security_iam_required-API-permissions.md).

**The network configuration is not supported**  
Verify that you are using resources that are supported by Reachability Analyzer. For more information, see [Intermediate components](how-reachability-analyzer-works.md#intermediate-components).

**The request failed due to modifications in network resources during the analysis**  
You can't update your network while the analysis is running.

**The request failed due to missing component [*component*]**  
Verify that the resource ARNs are correct. For more information, see the [Service Authorization Reference](https://docs.aws.amazon.com/service-authorization/latest/reference/).

**The request failed due to inaccessible resource [*resource*]**  
Verify that you have permission to access the specified resource.

**The request failed due to throttling errors from [*service*]**  
Check for other applications or services that are currently consuming read capacity for the specified service.