Common issues

Last updated: Oct 2nd 2020

Here it is a solution to the first 3 most common issues:

Installation error: “Your internet connection seems to be not permitted or dropped out”

Cause: This error may occur when your computer Operating System is not up to date or your computer date is wrong. Another reason may be that your internet provider is blocking the connection towards which is where the installation files are hosted.

Use the offline installer:
This way the installer will read the installation files directly from your hard disk.

The app says “Unable to connect error”

Cause: If it’s the first time that you’re connecting the app, it may be due to your Firewall and/or Antivirus that may be block the server connection.

Solution: Add the Barcode to PC server executable to the exceptions list of both the Firewall and Antivirus:

  • For the Firewall see here: How to configure the Firewall
  • For the Antivirus we don’t have any tutorial since the procedure is different for each antivirus, but if you’re having issues connecting the app try to temporarily pause all Antivirus software and when you finally identify what was blocking the server, add it to the exceptions list.

The app doesn’t find the server

Cause: The app isn’t connected to the same network of the server or the server isn’t able to announce the service over the local network.

Go through this checklist:

  • Make you sure that the smartphone Wi-Fi is enabled
  • Make you sure that computer and smartphone are under the same LAN network
  • Check Firewall and Antivirus as explained above
  • Try to pair the app with the QR Code:
    1. Open the server
    2. Click on the 3-dots menu icon (up-right side)
    3. Click Info, and the connect QR Code should appear
    4. Open the app
    5. Open the menu and tap “Select server”
    6. Tap the scan icon [  ] and scan the QR Code displayed on your computer


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