If you are unable to connect Transfer Companion (on your Android Phone) to Droid Transfer (on your PC) via a USB cable connection OR a Wi-Fi connection, this might be due to your Windows Firewall blocking the ports used to connect your phone and your PC. Note that the connection Droid Transfer is making between your phone and your PC is a local connection on your Wi-Fi or USB, and no data is transmitted to Wide Angle Software or any third party.
If you cannot get your phone to scan the QR Code in Droid Transfer, you may need to check your Windows Firewall settings .
For step-by-step instructions on how to configure Windows firewall to allow Droid Transfer to communicate with your Android Phone, please see this support article...
How to Configure Windows Firewall for Droid Transfer
Further help is also available depending on whether you're trying to connect using your Wi-Fi or USB, see below...