Locate the remote that the sensor(s) report to. Verify its physical connection to the remote if it’s a wired sensor, or its battery if it’s a wireless sensor. If the remote’s green STATUS or SERVER LED isn’t on solidly, power cycle the remote the sensor reports to by unplugging the power cord for 5 seconds and then plug it back in. Wait at least a minute, and you should see the remote’s green LED stop blinking and turn solid, which will indicate that it is once again connected to the server. Within the remote’s next update period, the monitoring point(s) should come out of COMM LOSS error. If not, call us and we’ll guide you from there.