> For the complete documentation index, see [llms.txt](https://alphavantage-api.marcelwagner.dev/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://alphavantage-api.marcelwagner.dev/exceptions/connectionexception-exception.md).

# ConnectionException Exception

**Exception Class:** `Illuminate\Http\Client\ConnectionException`

**Description:**

* This exception is thrown when a connection to the Alphavantage API server cannot be established or when the connection is unexpectedly terminated.

**Possible Causes:**

* Network issues, such as timeouts or DNS resolution failures.
* Temporary unavailability of the Alphavantage API servers.
* Server-side issues or maintenance on the Alphavantage side.

**Handling:**

* Implement retry logic with exponential backoff to handle transient network issues.
* Monitor network health and Alphavantage API status for ongoing issues.
* Provide informative error messages to users about the connection problem and any recommended actions (e.g., check network connection, try again later).