Connection lost

[Isaacsmeele]

Most of the time when I go to use assistant I get a connection lost error. I have all power optimization and app launch settings turned off for the Fitbit app. I need a solution as this makes the device an expensive piece of trash. My phone is a Huawei p30 pro.

[Guy_]

If you stop or logout of the Fitbit App you need to reconnect Google Assistant.

See Remember Google Assistant has been activated when logging in

[Isaacsmeele]

I didn't stop or log out.

[Guy_]

You may have missed Bluetooth options, here is something worth retrying.

On the phone check battery optimizations

[the options may be different in your version]

• First go to Settings > Apps & Notification > Special app access
• Click on Battery optimization
• Now press the drop down menu [...] and select “All Apps”
• Click on Bluetooth and then select “Don’t optimize”
• Same with Fitbit
• Next go to Settings > Apps  > Fitbit > Storage
• Clear cache [not data]
• Force stop the Fitbit app

[westsidekilla1]

Someone said that they were running the beta version of the Google app and rolling it back out of beta fixed their problem with Google Assistant losing connection, which I have that issue as well as my wife. So try that if you're running the beta version of the Google app. 

[Isaacsmeele]

I've done that for fitbit. There's no Bluetooth entry though. I'll try clearing the Fitbit cache.