When the Network Status Light flashes rapidly in 30 second intervals, the AcuRite HUB device cannot establish a network (Internet) connection.
When working normally, the AcuRite HUB device network status light flashes for 1 second each time a reading is sent to My AcuRite.
Make sure the Ethernet cable is firmly connected. The cable may be defective and need to be replaced.
Make sure DHCP is enabled on your router. Most routers have DHCP enabled by default.
Check your network router settings. If MAC address filtering security has been enabled, your router may be ignoring the outbound communication from the AcuRite HUB device. Review the network router manual or contact the manufacturer for more information. NOTE: The AcuRite HUB device Device ID is its MAC address.
The Ethernet port on your router may be malfunctioning. Try connecting the cable to a different port.