External tools to diagnose camera, mic, and connection issues

Depending on the issue reported by the learner, we use one of the following diagnostic tools to verify webcam, microphone, and network functionality.

Note: Asking the learner to go through external testing tools is not an ideal option. These tests may be confusing or stressful, especially if they’re not technically confident. Only suggest these tools if:

• The issue cannot be diagnosed based on symptoms, logs, or user description/screenshot;

• You need to confirm a hardware or connection issue.

Diagnostic Tools Overview

1. Webcam Test – Online Mic Test
   Use this tool when the issue relates only to the webcam. It quickly checks if the camera is connected, accessible, and functioning properly.

2. Microphone Test – Online Mic Test
   Use this tool when the issue relates only to the microphone. It verifies whether the microphone is capturing audio correctly.

3. WebRTC Test – Webcasts

   This tool is designed for diagnosing complex connectivity issues, especially related to live audio/video communication. It checks:

   • WebRTC connection status

   • Audio and video streaming quality

   • Network conditions, including packet loss and jitter

   • Media flow and peer connection status

   • Whether firewall or network configurations block required UDP ports, which can prevent streaming or screen sharing

4. Speedtest
   Use Speedtest to measure the learner’s internet bandwidth and speed. This helps identify whether network limitations could be causing connectivity or streaming problems.