Trouble

Ethernet Broken ? :(

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The ethernet on my Banana Pi board appears to be malfunctioning.
If I plug it into my switch, all the switch ports flash, on, off, and no traffic flows across the switch at all.

Unplug the Banana, and the switch resumes working.

This board has been working fine on the switch, the problem started happening suddenly.

Both lights on the Banana LAN port flash breifly on, then off for a couple of seconds then on. This flashing on the Banana corresponds with the lights on the switch.

dmesg reports LINK DOWN, LINK UP, LINK DOWN, etc.

Have tried rebooting the board, but still happens.

Running this OS:

$ cat /etc/issue
Linaro 13.04 \n \l



Am getting by with a USB Wifi adapter at the moment. But really need to know if this sounds like something wrong with the LAN port that can be fixed, or if the board is broken now? Been running for quite a while okay until maybe 2 days ago. No power spikes that I'm aware of.

Thanks
Crypter  
Exact same problem
  1. root@bananapi:~# tail -f /var/log/syslog
  2. Mar  8 02:43:49 bananapi kernel: [21821.870110] PHY: sunxi_gmac-0:00 - Link is Down
  3. Mar  8 02:43:51 bananapi kernel: [21823.880102] PHY: sunxi_gmac-0:00 - Link is Up - 100/Full
  4. Mar  8 02:43:59 bananapi kernel: [21831.890960] PHY: sunxi_gmac-0:00 - Link is Down
  5. Mar  8 02:44:00 bananapi kernel: [21832.900899] PHY: sunxi_gmac-0:00 - Link is Up - 100/Full
  6. Mar  8 02:44:12 bananapi kernel: [21844.912116] PHY: sunxi_gmac-0:00 - Link is Down
  7. Mar  8 02:44:16 bananapi kernel: [21847.922195] PHY: sunxi_gmac-0:00 - Link is Up - 100/Full
  8. Mar  8 02:44:28 bananapi kernel: [21859.933400] PHY: sunxi_gmac-0:00 - Link is Down
  9. Mar  8 02:44:29 bananapi kernel: [21860.943348] PHY: sunxi_gmac-0:00 - Link is Up - 100/Full
  10. Mar  8 02:44:41 bananapi kernel: [21872.954577] PHY: sunxi_gmac-0:00 - Link is Down
  11. Mar  8 02:44:43 bananapi kernel: [21874.964579] PHY: sunxi_gmac-0:00 - Link is Up - 100/Full
  12. Mar  8 02:45:09 bananapi kernel: [21900.976964] PHY: sunxi_gmac-0:00 - Link is Down
  13. Mar  8 02:45:11 bananapi kernel: [21902.986989] PHY: sunxi_gmac-0:00 - Link is Up - 100/Full
  14. ...
Copy the Code
The log is from my 100Mbps router, if you are asking yourself why 100/Full and not 1000. Tried 4 different cables - one of them even shielded, two different switches/routers and three different power supplies (in case it's the noise of the switching PSU, that wasn't the problem obviously)

After X minutes of doing this it goes into 10Mbit/Full or Half Duplex mode and it's almost stable (not always), but that's not enough for my file server - 1,24 MB/s is unacceptable!!! I searched on the forum and us two in this thread are not the only ones to have this problem.

I've posted about the constant problem with the grayscale image on the Composite out - NO RESPONSES. Now I'm having huge problems with my LAN. If anybody is about to give me any (possibly official) answers from Lemaker/Bannanian then it must be that you really don't care about the customer, only thing important is to sell your bad quality product and give no technical support. If somehow none of the official makers of this board don't react about these obvious problems I'll be asking a full refund or a replacement for my board. Deal with it.

I am facing the same issue, guess we wont get any help.

It is better to change the ethernet. One should check the paper writing service review before going to buy them. You should speed test to get the best one.

Garry  
I am also pursuing this problem for a long time, According to the Yahoo Support, this is the best option to change the ethernet.

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