L009UiGS-2HaxD power off when plugin ether1 cable

Hardware MikroTik hardware general
1

My L009UiGS-2HaxD power off when plugin ether1 cable, inmediatly, if I unplug the cable, the router power on again.

I hava other Mikrotik HAP AC, and I made some tests (test made with HAP AC without power source, no power cable or other devices connected):

  • If I plug a cable from ether1 (Port 1) from L009 to Port 5 of HAP AC (POE out port) nothing happens (L009) keeps on.
  • Pluggin the cable from L009 ether1 to HAP AC’s port 1, powers on the HAP AC, boots a cable link lights on both routers, seems like POE out is enabled on port 1 of L009 How is this possible?
  • IPlugin the cable from L009 ether 1 to HAPC Ac’s port 2, port 3 or port 4, makes L009 to power off inmediatly. HAP AC remains off (No power source). As soon as I disconnect the cable on either side, L009 power on.

Please anyone can give an advice or any help. Is this behavior normal? Could be a hardware issue?

L009 is brand new.

I made the tests with different cables and other routers that I have, the results are the same as I posted above. The output POE port (port 8) work as expected.

Tested firmwares with same result:

  • 7.20.2 (stable)
  • 7.16.2
  • 7.12 (factory firmware)
2

The Poe In port should be ether1, which should be the leftmost ethernet port looking at the L009 frontally, nearest to the USB port .
The Poe Out port should be ether8, which should be the rightmost port looking at the L009, farthest from the USB port.

So definitely your L009 has some issues, if it can power another device from ether1.
If there are some hardware issues (as an example a soldering bridge on the PCB), likely the behaviour in your second test:

remains the same no matter the PoE settings on the L009.

I have to ask, are you sure that the cable you are using to connect the two devices is fine?

3

I made the tests with different cables and other routers that I have, the results are the same as I posted above. The output POE port (port 8) work as expected. Should I return the device? It’s possible that I have a defective device?