> ## Documentation Index
> Fetch the complete documentation index at: https://docs.unstructured.io/llms.txt
> Use this file to discover all available pages before exploring further.

# Network, connection, and timeout issues

## Issues

When you try to establish or maintain a network connection between Unstructured and an external system, you get one of the following error types:

* `ReadTimeout`
* `TimeoutError`
* `ServerDisconnectedError`
* `ClientConnectorError`: For example, a `cannot connect to localhost` error.
* `ConnectionError`: For example, a `Failed to resolve 'model-registry-api...` error.
* `ServiceResponseError`: For example, for Azure, a `Timeout on reading data from socket` error.
* `ClientPayloadError`: For example, a `Response payload not completed` or `Connection reset by peer` error.
* `OSError`: For example, for Amazon S3 during a file upload, an `[Errno 22] The request body terminated unexpectedly` error.

## Possible causes

* Unstructured failed to connect to a required system.
* The connection timed out while waiting for a response.
* An established connection was unexpectedly closed.
* Transient network issues were encountered with the local network, with the Internet, or with a cloud provider.
* Firewalls are blocking connections.
* Some services are temporarily unavailable, slow, or unresponsive.
* The processing of very large files is causing long-running operations, which lead to exceeding default timeouts.
* Issues with DNS resolutions were encountered.

## Possible solutions

* **Retry the job**: Many network errors are transient. Wait a few minutes and then retry the job.
* **Check network connectivity**: Ensure stable network connectivity with the related source and destination systems.
* **Check firewalls**: Verify that any firewalls are not blocking necessary connections to source or destination APIs, blob storage, databases, vector stores, or ports.
* **Process smaller batches or files**: If timeouts occur during processing or uploading very large files, try using smaller files or batches.
* **Contact Unstructured Support**: For persistent `ClientConnectorError`, `ConnectionError`, or other frequent timeouts or disconnects that aren't resolved by retries, [contact Unstructured Support](/support/request). These issues can sometimes point to internal Unstructured system problems.

## Additional resources

* [Unstructured Status](https://status.unstructured.io) dashboard
* [Request Unstructured support](/support/request)