Warning
Hazard of Electric Shock: Remove all power from all devices before removing any covers or doors of the system. Disconnect power at the device and at the power source.
Electrostatic Discharge Required: Always discharge static electricity from your person by touching metal prior to handling any hardware. Failure to do so may result in damage to devices.
Potential for Data Loss: The steps detailed in the resolution of this article may result in a loss of critical data if not performed properly. Before beginning these steps, make sure all important data is backed up in the event of data loss. If you are unsure or unfamiliar with any complex steps detailed in this article, please contact Product Support for assistance.
Issue
When the Flex Server/Gateway is unable to connect to the internet, it's important to verify the network priority settings to understand how the device attempts to connect to the cloud.
Product Line
EcoStruxure Building Activate
Environment
- EcoStruxure Building Activate Flex Server
- EcoStruxure Building Activate Partner Portal
Cause
The Flex Server/Gateway is not designed for direct exposure to public networks. Improper network priority settings may cause the device to go offline when connected to the internet.
Resolution
The Flex Server/Gateway supports multiple internet connectivity options:
- Cellular (GSM): Supports two SIM cards for redundancy.
- Ethernet
- Wi-Fi (via Wi-Fi receiver)
- USB Tethering (via the top USB port, usb0, for troubleshooting)
- Learn more about USB tethering: USB Tethering for Flex Server
Connectivity Priority (Default Order)
- USB Tethering (usb0)
- Cellular (GSM)
- Ethernet
- Wi-Fi
Note: If GSM fails and Ethernet is connected, the server will automatically switch to Ethernet. If both GSM and Ethernet are unavailable, it will switch to Wi-Fi (if configured).
SIM Card Failover
If one SIM card loses internet connectivity, the server automatically switches to the second SIM after a few minutes.
Best Practices
- Install the server in a secure location to prevent tampering (e.g., unplugging Ethernet or removing LTE antenna).
- Avoid direct exposure to public internet to maintain security and stability.
