ADS Environmental Services RainAlert II QR 775008 A2 - Manual (Page 121)

Maintenance and Troubleshooting 6-15
Problem Monitor does not answer through wireless communication.
Possible
Causes
Signal strength to the modem may be insufficient.
Battery pack may be dead or below minimum voltage
requirement (4.5 volts).
Monitor may be defective.
Modem in monitor may be defective.
Antenna or cable may be damaged.
Internet connection in office or field computer may be
down.
Wireless carrier may be experiencing problems.
Port 2100 may be blocked by IT department.
Possible
Solutions
Direct connect to monitor on site, and request the signal
strength. If the signal strength falls between -51 and -95,
communication should be available. If it reads below -95,
relocate the antenna. If relocation is not an option, install a
land line or perform all communications on-site.
Replace the battery pack if below 4.5 volts.
Replace the monitor.
Replace antenna/cable (applies only to external antenna).
Restore Internet connection.
Check for AT&T outage.
Restore/establish permission to pass TCP/IP traffic via
Port 2100.