> For the complete documentation index, see [llms.txt](https://support.senterasensors.com/fieldagent-mobile-ios/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://support.senterasensors.com/fieldagent-mobile-ios/troubleshooting-guide/sentera-rtk-base-station.md).

# Sentera RTK Base Station

Known Issues and Resolutions

## Base Station Disconnected

When using the Sentera Base Station utility in the app, ensure the following:

* You must have an ethernet adapter for your Apple mobile device.
* You must have the base station powered on and connected.
* You must have the ethernet settings [configured](/fieldagent-mobile-ios/60-second-guides/sentera-rtk-calibration.md#first-time-setup) correctly.
* When prompted, you must allow Local Network access.

You can check Local Network permissions under iOS Settings -> FieldAgent.

<figure><img src="https://3961074089-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FZgxcabwSCSKC3cebaIwD%2Fuploads%2F53jiekUVbD99lQQSp739%2Fapp_permissions.png?alt=media&amp;token=481dfb7e-ef7c-48dd-ac1b-d2a514d43e18" alt=""><figcaption><p>Local Network must be toggled on.</p></figcaption></figure>