Good day,

I have several *Beaglebone Black Rev C*. They are connected to my LAN by 
using a static IP address. I observed that from time to time connecting to 
the Beaglebone Black via ethernet is not possible.

*I identified the following behavior:*

The ethernet port has two LEDs, a Green one and an Orange/Yellow one. If I 
apply power to the Beaglebone Black I noticed that the green LED 
immediately starts to blink. However, the yellow LED stays very often dark. *It 
simply never blinks during the whole boot process of the board*. In this 
case ethernet will not be available after booting linux and the board can 
not be reached via ethernet.

*My workaround:*

<https://lh4.googleusercontent.com/-ccszPy8rMis/U_Hz2KG6ngI/AAAAAAAAACM/mfEH9GBYDzE/s1600/bb_ethernet.png>




Is this a known respectively a bug? I observed this with several Beaglebone 
Black Rev-C from Element 14. I also have 2 Rev-B boards and I think 
(currently not 100% sure since these boards are not used at the moment) 
that I observed the same behavior.

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