A software only solution to the vexing Beagle Bone Black PHY issue
Power cycling BBB’s with clicky relays
Sometimes the Ethernet port on a Beagle Bone Black does not work on power up. It takes either a physical reset button press or a power cycle to fix it. This problem affects all BBB’s and until now could only be solved with hardware hacks.
The final official word from TI on this problem:
This sucks. If you are thinking of using a Beagle Bone Black for anything important… then don’t. And don’t bother reading the rest of this article.
If you already are stuck with the Beagle Bone Black and wish that it worked right each and every time you turn it on, then read this article.
Here is a workaround that can guarantee that an unmodified Beagle Bone Black will have a working Ethernet port within a few minutes after power up.
