Whiteboard

Language note: Media and interface labels remain in their original language. Portuguese labels are kept as displayed, with English explanations where useful.

Troubleshooting Guide: Whiteboard

🛠️ Introduction

If you are having trouble connecting to the Slingui collaborative whiteboard, follow the steps below to identify and resolve the problem.

1. Check Your Browser

Make sure your browser is up to date and configured correctly:

✅ Update Google Chrome to the latest version: 🔗 Download Google Chrome
✅ Clear your browser’s cache and cookies.
✅ Open an incognito (or private) window and try accessing the whiteboard.

Instructions: In Google Chrome, press Ctrl + Shift + N (Windows) or Command + Shift + N (Mac) to open an incognito window.

Note: We recommend using Google Chrome for the best compatibility with the collaborative whiteboard.

2. Server Access

Check whether the whiteboard is accessible:

✅ Open 🔗 https://slingui-whiteboard.com directly in your browser.
✅ If you receive a 404 error, this indicates that the whiteboard server is accessible, but the specific page was not found.

Note: If the link does not load or displays other errors, the problem may be related to local settings, such as your browser, firewall, or network.

3. Check Your Firewall

The whiteboard uses secure WebSocket connections (wss://), which may be blocked by firewalls or antivirus software. Check the following:

✅ Contact your network administrator to confirm that the required ports are allowed.

See the Whiteboard Firewall Configuration Guide.
✅ Check whether antivirus or security software is blocking WebSocket connections.

4. Additional Checks

Perform the following tests to identify possible connection issues:

✅ Confirm that your internet connection is stable.
✅ Disable any active VPN and try again.
✅ Test whiteboard access on a different network (e.g., mobile data).
✅ Disable browser extensions that could interfere (e.g., ad blockers).
✅ Check for network proxy settings that could be blocking WebSocket connections.

📞 Need Help?

If you still cannot connect to the whiteboard after following all the steps, contact our Slingui support team.