# Unable to reach Endpoint Central Server during Integration

## Problem

You have problems in reaching the Endpoint Central server while trying to integrate Endpoint Central app with Zendesk.

## Cause

You will encounter this error due to one or more of the following reasons:

1. Endpoint Central Server has stopped/not reachable.
2. Incompatible build version of Endpoint Central server.
3. Self Signed or Third party Security Certificate not from a trusted authority

## Resolution

You need to verify the following steps mentioned below:

1. Ensure Endpoint Central server is up and running in the network. You can also try accessing the Endpoint Central server in your browser.
2. Ensure you have moved Endpoint Central server to the latest version - Endpoint Central 10 build #10.0.112. [Learn more](https://www.manageengine.com/products/desktop-central/service-packs.html).
3. It is recommended to hold a SSL (Secure Socket Layer) Certificate signed by a valid Certificate Authority (CA) to secure communication with the Endpoint Central server. [Learn more](https://www.manageengine.com/products/desktop-central/help/configuring_desktop_central/importing_ssl_certificates.html).

**Applies to:** Helpdesk integrations, Endpoint Central - Zendesk integrations, Server reachability  

**Keywords:** Zendesk integration, Endpoint Central and Zendesk, helpdesk integrations, ITSM