---
title: "Steps to Resolve Certificate Not Trusted Error in the Client Device"
slug: "steps-to-resolve-zscaler-certificate-error-in-the-client-device"
updated: 2026-06-24T00:26:26Z
published: 2026-06-24T00:26:26Z
canonical: "docs.workspot.com/steps-to-resolve-zscaler-certificate-error-in-the-client-device"
---

> ## 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 cannot 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?sv=2026-02-06&spr=https&st=2026-10-12T13%3A19%3A59Z&se=2026-10-12T14%3A19%3A59Z&sr=c&sp=r&sig=C9RGBphwh9BCBdZt3%2FFGovIjRxkd84ZYQcKrdozr39g%3D)

*Certificate Not Trusted error.*

## 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 is observed with client devices with Digital Guardian and Netskope software.

## Solution

- Log in to Control with valid admin credentials.
- Navigate to “Setup > Certificates.”
- 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?sv=2026-02-06&spr=https&st=2026-10-12T13%3A19%3A59Z&se=2026-10-12T14%3A19%3A59Z&sr=c&sp=r&sig=C9RGBphwh9BCBdZt3%2FFGovIjRxkd84ZYQcKrdozr39g%3D)

*Add the certificate to Control.*

> **Note:** .pem, .pkcs, .pfx, .p12, .cer, and .crt formats are supported.

- Relaunch the Workspot Client.
- In the Client, select “Settings > Refresh Configuration” to fetch the latest configuration.