Your Mac shows as offline when the dashboard hasn't received a report in the last 2 minutes. The most common reasons:
1. The agent was never set up to auto-start — it only ran once when you first installed it. Fix: click
+ Add Mac in the dashboard to get a fresh install command and run it again.
2. A cleaning app removed the service — see "What if a cleaner app removes it?" above.
3. Your Mac was off or sleeping — the agent pauses while asleep and resumes automatically when you wake it up.
When your Mac is offline, the dashboard shows a red banner at the top explaining what happened and what to do.