What should be checked first when diagnosing an issue with Zscaler?

When diagnosing an issue with Zscaler, it is crucial to begin with local network settings. This is due to the fact that many connectivity issues can arise from the local network environment itself before they even reach the Zscaler service. For instance, if the local network settings are misconfigured, the device may struggle to connect to the Zscaler cloud, leading to apparent issues with access.

Assessing local network settings includes checking aspects like if the devices are correctly configured to route traffic through Zscaler, ensuring that the necessary ports are open, and verifying that any proxy configurations are accurately set up. These foundational steps can quickly identify whether the problem lies within the network configuration, simplifying the troubleshooting process.

If the local settings are confirmed to be functioning correctly, the next logical step would be to investigate the other factors, such as checking the Zscaler service status, end user device configuration, and user permissions, but starting with local network settings sets a solid groundwork for effective diagnosis.