Fix a monitoring that will not connect
We'll check power, cellular or internet connection, and panel settings so monitoring connects—or tell you when to call your alarm company.
What you'll need
- Access to the panel and router (if internet)
- System manual (for connection type and menu)
Step-by-step diagnostic
Quick triage — pick your path
Quick triage — pick your path
Choose the option that matches what you see. You can jump straight to that section.
Show full guide
Steps
Goal: Confirm the fault, check power and connection, then restore monitoring.
- Confirm the panel shows a comm or monitoring fault.
- Good: Fault shown. Proceed to Cellular path or Internet path.
- Bad: No fault—different problem. See When to get help.
Cellular path
Goal: Check the communicator cellular connection.
- Confirm the antenna is connected. Check signal strength in the panel menu if available.
- Move the antenna away from metal or thick walls. Power-cycle the panel.
- Confirm the fault clears and the panel connects to the central station.
Internet path
Goal: Check the communicator internet connection.
- Confirm the ethernet cable is connected to the router. Check the router is on and the internet works.
- Restart the router. Power-cycle the panel. Confirm the fault clears.
When to get help
- Call your alarm company if monitoring still will not connect after checking power and connection.
- Do not open the panel if you are not comfortable.
Verification
- The panel shows no comm or monitoring fault.
- The central station receives test signals.
- Monitoring status is OK in the panel or app.
Escalation ladder
Work from the device outward. Stop when the problem is fixed.
- Confirm fault Verify the panel shows comm or monitoring fault.
- Check power Confirm panel has AC power.
- Check connection Cellular—antenna and signal. Internet—ethernet and router.
- Power-cycle Power-cycle the panel to force reconnect.
- Call alarm company They can check account, signal, and programming.
What to capture if you need help
Before calling support or posting for help, have these ready. It speeds everything up.
- Connection type (cellular or internet)
- Whether power and connection were checked
- Steps already tried
Does the panel show a comm or monitoring fault?
Check the display for Comm Fail, Monitoring Fault, or similar.
You can change your answer later.
Does the panel have power?
Check AC power and breaker.
You can change your answer later.
Restore power
Is the connection good?
Cellular: antenna and signal. Internet: ethernet and router.
You can change your answer later.
Fix connection
Power-cycle the panel
Call alarm company
Reviewed by Blackbox Atlas
Frequently asked questions
- Why would monitoring not connect?
- Common causes: power loss, cellular signal weak or blocked, internet down, or account or programming issue. Check power and connection first.
- How do I know if my panel uses cellular or internet?
- Check the panel or communicator. Cellular units have an antenna. Internet units use ethernet. Some have both. Check your manual or call your alarm company.
- When should I call my alarm company for monitoring?
- Call if you have checked power and connection and monitoring still will not connect. They can verify the account, signal, and programming.
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