If your Qolsys panel is reporting low/no signal strength or you are seeing a Dual-Path Communication Failure - Cellular trouble condition in Alarm.com, the below steps should help to resolve the issue.
What is recommended is a full power cycle of the system, leaving the system completely off for at least two minutes before powering the system back on. This will give the panel a chance to reconnect to the nearest cellular tower and typically fixes cellular connection errors that are not hardware related.
To do so:
- Navigate to Settings > Advanced Settings > Enter Dealer/Installer/Master User Code > Power Down to turn off the Qolsys panel.
- Unplug the power supply from the wall outlet
- Open the panel and disconnect the internal battery.
- Leave the panel powered down for at least 2 minutes.
- Plug the battery back in, close up the panel and reconnect the power supply
- Press the button on the side of the panel for about 2 seconds to turn it back on.
- Once the panel has rebooted, wait about 5 minutes, then run a cell test and check signal strength.
- To run a cell test, navigate to Settings > Advanced Settings > Enter Installer Code > System Tests > Cellular Tests.