Troubleshooting Wireless Screen Sharing on CommBox Screens

Applies To
Applies to: Classic S4, Classic S4+, Horizon, Intelligent Display, LED Board

Step 1: Check Network Connection

Make sure both your device and the CommBox screen are connected to the same Wi-Fi network - this will ensure optimum results.

• Open Wi-Fi settings on both devices

• Confirm they are on the same network name (SSID)

• Restart your router if the network isn’t showing up

💡 Tip: Avoid guest or public Wi-Fi networks—they often block device-to-device communication.

Step 2: Enable Screen Sharing Protocols

Check that the necessary protocols are turned on in the CommBox Connect app on the screen.

• Tap the CommBox Connect icon on your CommBox screen

• Select Menu > Settings

• Make sure Airplay, Chromecast, and Miracast are enabled depending on your device type

Step 3: Use the Right Screen Sharing Method

Different devices use different technologies:

• Apple Devices: Use Airplay from Control Centre

• Windows Devices: Press Windows + K to start casting with Miracast

• Android Devices: Use Smart View or Wireless Display 

• Chromebook or Chrome Browser: Use the Cast feature from the browser menu

💡 Tip: Some Windows laptops don’t support Miracast.

Step 4: Try the CommBox Connect App

If native casting isn’t working, download the CommBox Connect app.

• Install it on your personal device. 

• Ensure both devices are on the same network

• Enter the 6-digit connection code shown at the top of the CommBox screen

• Follow prompts to start sharing

Alternatively, visit connect.commbox.com.au to cast via web browser.

Step 5: Restart Devices

Sometimes a quick reboot solves everything:

• Restart your laptop, tablet, or phone

• Restart the CommBox screen by holding down the power button

• Reopen the CommBox Connect app and try again

Step 6: Test with Another Device

To isolate the issue, try connecting with a different device. This helps determine if the problem is with the screen or your personal device.

Step 7: Check for Software Updates

An outdated version of CommBox Connect may affect performance.

• Open CommBox Connect on the screen

• Go to About

• Tap Update if a new version is available

Step 8: Make sure all screensharing ports are open on the network

The IT administrator needs to make sure all ports relevant to CommBox Connect are open on the network.

Refer to the Networking Security Document for more information.

Troubleshooting / What to Do If It Still Doesn’t Work

• Airplay not showing up on iPhone or Mac?
  Make sure Bluetooth and Wi-Fi are both turned on, and that the CommBox is not using a guest network.

• Chromecast won’t connect?
  Try toggling the Cast option off and on in Settings > Chromecast.

• Miracast not appearing on Windows?
  Check if your device supports Miracast and that drivers are up to date.

• Touchback not responding on the iPad?
  Touchback only works on the iPad when the setting is turned on Settings > iPad control

Need help with EShare or Airserver - refer to those apps in the knowledge base.