There is no sound: browsers start video muted. Press any button on the remote, or click the screen, once after the page opens. Then check the TV's own volume.
The screen says it is off: your free days have ended or the subscription was cancelled. Sign in, open your screen and press Subscribe. It comes back within about a minute.
The TV went dark during the day: that is the TV's sleep timer or energy saver. Turn both off in the TV's settings.
My change is not showing: check that you pressed Save and that the card's dates include today. Reloading the page on the TV also works.
The dashboard says TV offline: the TV has not checked in for a while. Make sure it is on, connected to the internet and still showing your link.
The picture does not fill the TV: choose 16:9 or Fit to screen in the TV's picture settings and put the browser in full-screen mode.
If the internet goes down, the screen reconnects on its own when the connection returns.
Troubleshooting your screen
Fixes for common lobby screen problems: no sound, screen off, TV going dark, changes not showing, TV offline, picture size.