Trainer no signal

I have encountered the no signal errors twice this week always mid workout, only way to fix it is to reopen the zwift app on my phone and reconnect. Ends up losing my workout progress and had to start from the beginning every time. Anyone have a fix for this error?

What device are you using for Zwift and how do you connect.

Android Pixel 2 phone

There are many users here who can help, but you must provide more information:

Phone battery dead or over heating maybe?