---
title: "Steps to Resolve Certificate Not Trusted Error in the Client Device"
slug: "steps-to-resolve-zscaler-certificate-error-in-the-client-device"
updated: 2025-07-18T03:28:37Z
published: 2025-07-18T03:28:37Z
---

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

# Steps to Resolve Certificate Not Trusted Error in the Client Device

**Issue:**Users are not able to access Workspot Desktop from a Windows or Mac client and are getting a certificate error.

![](https://cdn.us.document360.io/ad9153e1-c8de-4f56-94f2-b717a1fc3a68/Images/Documentation/e0952599-925d-4ec6-b182-f1fae4e11a5a.png)

*Error screenshot from Mac Client Device*

**Cause:** Zscaler is installed on the client device, causing interference with the certificate needed for communication with Workspot Components. Despite whitelisting the following URLs in Zscaler, the issue persists.

- [https://control.workspot.com](https://control.workspot.com/)
- [h](https://service.workspot.com/)[ttps://service.workspot.com](https://service.workspot.com)
- Workspot Gateway URLs

Note: A similar issue was observed with client devices with Digital Guardian and Netskope software.

**Solution:**

- Log in to Control with valid admin credentials
- Navigate to the Setup tab and then to the Certificates tab under it.
- Add the Trusted Enterprise or Root Certificate of the software and map it to the user group as shown below:

![](https://cdn.us.document360.io/ad9153e1-c8de-4f56-94f2-b717a1fc3a68/Images/Documentation/efb244e0-1161-4936-8562-54eab3d75025.png)

**Note**: pem, pkcs, pfx, p12, cer, and crt format files are supported.

- Relaunch the Workspot client and make sure the latest policy is applied to the Workspot Client device.