If there is no way to resolve this issue does anyone know how to RMA an 
element 14 BBB?



On Sunday, June 14, 2015 at 8:31:58 PM UTC-4, John Reeve wrote:
>
> Hi All, 
>
> I have a pair of BBB's that I bought from Canada Robotix. They are both 
> Rev C boards from Element 14. I've been running debian on a micro SD card 
> on each of them. The one board had been running a web server for about 2 
> months straight, but suddenly lost Ethernet capabilities one day. Both the 
> Ethernet LED's stay ON solid even when no cable is plugged in. I tried to 
> rule out software by loading up a couple different OS's but none of them 
> can connect to my network. I even tried flashing an experimental version of 
> debian from the beagleboard.org wiki but that did not work either. When I 
> boot into debian now I notice the ethernet lights blink for a bit then stop 
> and stay on solid, and I get messages from dmesg like: 
>
> root@beaglebone:/var/lib/cloud9# dmesg | grep phy
> [    0.000000] Booting Linux on physical CPU 0x0
> [    2.715169] 47401300.usb-phy supply vcc not found, using dummy regulator
> [    2.830812] 47401b00.usb-phy supply vcc not found, using dummy regulator
> [    3.392979] davinci_mdio 4a101000.mdio: detected phy mask fffffffe
> [    3.399823] libphy: 4a101000.mdio: probed
> [    3.399859] davinci_mdio 4a101000.mdio: phy[0]: device 
> 4a101000.mdio:00, driver SMSC LAN8710/LAN8720
> [   13.783697] net eth0: phy found : id is : 0x7c0f1
> [   13.783894] libphy: PHY 4a101000.mdio:01 not found
> [   13.788720] net eth0: phy 4a101000.mdio:01 not found on slave 1
> [   16.863473] libphy: 4a101000.mdio:00 - Link is Up - 100/Full
> [   46.943180] libphy: 4a101000.mdio:00 - Link is Down
> [   71.703444] libphy: 4a101000.mdio:00 - Link is Up - 100/Full
> [   79.783276] libphy: 4a101000.mdio:00 - Link is Down
> [  111.023649] libphy: 4a101000.mdio:00 - Link is Up - 100/Full
> [  233.103186] libphy: 4a101000.mdio:00 - Link is Down
> [  369.103554] libphy: 4a101000.mdio:00 - Link is Up - 100/Full
> [  385.183238] libphy: 4a101000.mdio:00 - Link is Down
> etc...... etc....
>
> Does anyone have experience with this type of problem? 
> Other info:
> root@beaglebone:/var/lib/cloud9# uname -a
> Linux beaglebone 3.14.43-ti-r67 #1 SMP PREEMPT Thu Jun 4 20:37:18 UTC 2015 
> armv7l GNU/Linux
>
> Everything else seems to work. 
>
> Thanks! 
>
> -John
>
> .
>

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