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MikroTik RouterBoard hEX S
Normal Status Lights

Light
STATUS
Description & Suggested Action
POWERSOLID GREENPowered On
UNLITNo Power
SFPSOLID OR FLASHINGActs as a Link indicator and also used during RouterOS system resets
ETHERNET 1-4SOLID GREENA valid 1000 Mbps (Gigabit) link is established
SOLID ORANGEa valid 10/100 Mbps link is established
FLASHING GREEN OR ORANGEData is being transmitted or received
UNLITNo cable is connected, the connected device is powerd off or the link has failed
ETHERNET 5FLASHING RED/GREENWhen PoE output is active, the LED may display an alternating red/green sequence during standard activity

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The Story Behind "Status Lights"

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