Could not connect to web FMC/MCDU

This message is displayed when the web FMC/MCDU is not exposed by plane API. This can happen for a few reasons:

• plane server is not running
• blocked port
• wrong port configuration

FlyByWire - SimBridge

Please make sure that your SimBridge is up and running on port 8380.

Follow instructions from FlyByWire to install and configure SimBridge.