If your Flume Bridge disconnects from WiFi, you will get an email letting you know.
First, you will want to restart your router. When your router comes back up, your bridge should reconnect.
If it doesn't, you will see a notification on your Dashboard as shown below:
To reconnect to WiFi, please click the "Fix here" link. You will then be guided through a series of pages that will help you reconnect your WiFi.
If you have any problems connecting to WiFI during this process, please click here for some troubleshooting tips.