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How to Fix Panel Communication Failure on the GC3

Receiving a communication failure or radio not responding message on your panel?

This means your system is not communicating with our Alarm Response Center and we won’t receive signals for any alarm activity until communication is restored.

Below are possible causes as to why your system is showing a communication failure, as well as some tips on fixing the cause.

Has your Wi-Fi name or password changed?

If you have recently changed your Wi-Fi name or password, or have replaced your router, you will need to update your Wi-Fi information by following these steps.

Power Outage:

  • • Make sure your alarm system has power. If you are experiencing a prolonged power outage, the system will come back up when power is restored.
  • • If your power has recently been out, the panel battery may be too weak to allow your cell to send signals. Allow 24 hours to recharge the battery.


Loss of Connection to Power Source:

  • • Make sure your plug is connected securely to its outlet.
  • • Make sure the outlet is supplying power – you can check this by plugging something else in to this outlet to see if it’s receiving power.


3G Cellular Service Expired

  • • 3G is a cellular technology that was phased out in 2022, as detailed in our 3G LTE Update communication.
  • • Communication errors occurring recently may be due to the cellular module in your panel is no longer supported by current cellular technology and requiring an update.
  • • To coordinate an update with an installation professional, text us at 317-399-5748  for fast, professional service.
  • Please note that In-alarm can still receive signals, ensuring you will remain protected, so long as you have your home’s Wi-Fi connection to your panel.


Local Cell Provider Outage:

If there is an interruption of cell service in your area, your system’s communication could be impacted temporarily. Ensure that your Wi-Fi is connected as a backup in this event.


Signal Interference:

  • • Large metal objects and appliances that generate radio frequency can interfere with signaling. If you identify these objects around your alarm system, try increasing their distance from your system if it’s safe to do so.
  • • It’s best if your system is located near an exterior wall, above ground (not in a basement), and not in the middle of a large structure (like an interior closet far from exterior walls).


System Malfunction:

If your communication failure is caused by a system malfunction, you can try to power cycle the system:

  1. Completely power down the panel and the module.
  2. Wait 2 minutes, then power the panel back up.
  3. Test your system to confirm whether communication has been restored. Remember to place the system on test to avoid a false alarm.


Interruption to Landline Phone Service:

  • • Phone service outage in your area.
  • • You have disconnected your home phone service.
  • • You have switched to a new provider.
  • • VoIP and Digital Voice Over Cable may not be compatible with your security system. You may need to switch to a different phone service, or text us to upgrade to cell communication. With cell communication, you get access to remote arming and disarming from your phone. You also open the door to transform your home with smart automation devices like remote cameras, thermostats, lights, and door locks.
  • • Your new provider may not have connected your phone line to your system.


Still having trouble?

See below to review steps to power cycle your GC3. If communication failure continues, text us at 317-399-5748  for help.


GC3/GC3e Power Cycle Instructions:

  1. Remove AC power from the outlet.
    001 power supply gc3
  2. Remove the panel from its mount, then disconnect battery backup power.
    003 battery disconnection

    1. Wait 2 minutes, then reconnect battery backup power.
    2. Return the panel to its mounted location before you return AC power. Resecure the AC power adapter with a ziptie.

    How to reconnect your panel to Wi-Fi:

    1. Press System Settings, then enter your master code
    gc3 wifi program 01 ready to armgc3 wifi program 02 enter code
    2. Press Network Settings, then Wireless.
    gc3 wifi program 03 system settingsgc3 wifi program 04 network main
    3. Select your Wi-Fi network, then enter your password. Press Next.
    gc3 wifi program 05 list networksgc3 wifi program 06 enter encryption

    4. Once the GC3 connects to your network and displays network settings, press the back button to exit.
    gc3 wifi program 07 connectinggc3 wifi program 08 network stats
    5. If successful, Connected shows on screen. Press the back button or Home to exit.
    gc3 wifi program 09 connectedgc3 home button 2 1
    If you need further assistance, you can text a Support Representative at 317-399-5748 , 7 days a week from 8 am to 8 pm CT.

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