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Bridge – no connection to the device

Fetura CLOUD notification banner reporting a lost connection to the Bridge device ("Connection to devices lost: cannot connect to devices: Bridge").

If there is no connection to the Bridge, check the color of the indicator LED in the upper left corner of the device housing [1] and the status LEDs on the right [2].

Follow the recommendations described in the table below.

Photo of the Bridge device housing with two numbered red boxes: [1] the main indicator LED in the upper left corner, and [2] the column of status LEDs on the right side used to diagnose the connection.
LED color [1]The way the diode glowsCondition of the deviceSolving the problem
Icon of a steady/pulsing green indicator light labeled "ZIELONY" (green), used in the LED status table.PulseThe device is working properlyReset Bridge
Icon of a blue indicator light labeled "NIEBIESKI" (blue), used in the LED status table.PulseThe device restartsIf it takes more than 30s to restart, reset the main Bridge power supply. If the problem is not solved, contact technical support.
Icon of a flashing red indicator light with radiating lines, labeled "CZERWONY MRUGAJĄCY" (flashing red), used in the LED status table.FlashingThe device is not working properlyReset Bridge. If the problem is not solved contact with technical assistance.
Icon of an unlit, gray indicator light labeled "WYŁĄCZONY" (off), used in the LED status table to show the device has no power.NoNo main power supplyConnect Bridge to power supply
Table 1. Indication of the indicator light in the upper left corner of the device housing [1].

Diode
status [2]
The way the diode glowsCondition of the deviceSolving the problem
WORKFlashingThe device is working properly
WORKContinuous / NoneThe device is not working properlyReset Bridge. If the problem is not solved contact with technical assistance.
RS 422 RXFlashingThe device is working properly. LED indicates receipt of data in Bridge RS422
RS 422 RXContinuous / NoneThe device is not working properlyCheck the wired connection between the Cloud Box and the Bridge. If the connection is correct reset the Bridge.
RS 422 TXFlashingThe device is working properly. LED indicates sending data in Bridge RS422
RS 422 TXContinuous / NoneThe device is not working properlyCheck the wired connection between the Cloud Box and the Bridge. If the connection is correct reset the Bridge.
TTL RXFlashingThe device is working properly. LED indicates receipt of data in Bridge ETH
TTL RXContinuous / NoneThe device is not working properlyCheck the Bridge connection to the LAN and to the ETH adapter inside the device (the orange LED and the green LED should be on). Make sure the Bridge is connected to the same LAN as the Cloud Box. If the connection is correct reset the Bridge.
TTL TXFlashingThe device is working properly. LED indicates receipt of Bridge ETH data
TTL TXContinuous / NoneThe device is not working properlyCheck the Bridge connection to the LAN and to the ETH adapter inside the device (the orange LED and the green LED should be on). Make sure the Bridge is connected to the same LAN as the Cloud Box. If the connection is correct reset the Bridge.
Table 2. LED statuses on the right [2].
Updated on 2026-07-23
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