# 40504

### Description <a href="#description" id="description"></a>

The API server failed to respond within the response window

### Possible Causes <a href="#possible-causes" id="possible-causes"></a>

The server, while acting as a gateway or proxy, did not get a response in time from the upstream server that it needed to complete the request, or it is down.

### Possible Solutions <a href="#possible-solutions" id="possible-solutions"></a>

* If the problem persists, please contact KORE support.
