How to Collect Diagnostic Information from a Zyxel Nebula Access Point via GUI

Zyxel Nebula Access Points include a built-in diagnostic utility that allows administrators to generate support logs and troubleshooting files directly from the local Web GUI.

These diagnostic files are essential for analyzing:

  • AP offline issues
  • WiFi client disconnects
  • roaming problems
  • DHCP/DNS failures
  • cloud connectivity issues
  • wireless performance degradation

This article explains how to collect diagnostic information from a Zyxel Nebula AP using the local GUI interface before opening a support case with Zyxel Support.

Prerequisites

Before collecting diagnostics, ensure the following requirements are met:

  • The AP is powered on and connected to the network
  • Your PC is connected to the same subnet as the AP
  • You know the AP IP address
  • Administrator credentials are available
  • A web browser is installed

Note: Depending on the firmware version, the AP may display an HTTPS certificate warning because it uses a self-signed certificate.

Find the AP IP Address in Nebula

  • Log in to the Nebula Control Center. 
  • Navigate to: Site-wide - Devices - Access points

Access the AP Local Web GUI

  1. Open a web browser.
  2. Enter the AP IP address using HTTPS:

Open the Diagnostics Menu

After successfully logging in to the AP local GUI:

  1. Navigate to: Maintenance → Diagnostics

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