Connection Troubleshooting

If you are unable to connect to an Emtron display from your PC, the most common cause is security software blocking the connection. Work through the steps below in order.

1. Temporarily Disable Antivirus Software

Some antivirus programs actively block network connections to unknown devices, even on a local network. Temporarily disabling your antivirus is the quickest way to determine whether it is the cause.

Locate your antivirus icon in the Windows system tray (bottom-right of the taskbar).
Right-click the icon and look for an option such as Disable, Pause Protection, or Turn off.
Choose a short disable period (e.g. 10–15 minutes) if prompted.
Attempt to connect to the display again.
If the connection succeeds, re-enable your antivirus and proceed to add a firewall exception rather than leaving protection disabled.

Note: The exact steps vary by antivirus product. Refer to your software’s documentation if you cannot find the disable option.

2. Add a Windows Firewall Exception

Windows Firewall may block incoming or outgoing traffic to the display. Adding an exception allows the connection while keeping the firewall active.

Allow an App Through the Firewall

Open the Start menu and search for Windows Defender Firewall.
Click Allow an app or feature through Windows Defender Firewall.
Click Change settings (administrator rights required).
Click Allow another app… and browse to the EMtune or display configuration executable.
Ensure both Private and Public checkboxes are ticked for the application.
Click OK to save.

3. Check Network Adapter Settings

If the display is connected over Wi-Fi or a dedicated Ethernet adapter, ensure the adapter is set to a Private network profile. Windows restricts some traffic on Public networks.

Open Settings → Network & Internet.
Click on the active network connection.
Under Network profile type, select Private.

4. Still Having Issues?

If none of the above steps resolve the connection problem, please contact Emtron support.

Troubleshooting