In order to solve the problem, please download and install FlowSync again from flow.polar.com/loop
If the problem persists also after reinstalling the FlowSync, please check Network Settings.
First check if you can access the internet and Flow web service at polar.com/flow. If yes, make sure your Network Settings are correct:
1. Click the settings icon on the Polar FlowSync dialog and select Network settings or right-click / secondary click the FlowSync icon on your computer taskbar / menu bar and select Settings → Network settings.
2. If you have selected Automatically detect network settings, FlowSync automatically uses the same network settings as your internet browser. If the internet connection does not work with that setting, try the other ones: Direct connection to the internetand Manual proxy settings.
You can check the correct proxy settings as follows:
Windows: Start (→ Settings) → Control Panel → Internet Options → Connections → LAN Settings → Proxy server address and port.
Mac OS X: From the Apple menu select System Preferences → Network → Select your active connection from the list → Advanced → Proxies → Web Proxy (HTTP) → Web Proxy Server (name and port).