Port 2 Not Working

[bsloan9858]

Hello,

I'm having an issue with a brand new Netonix WS-12-250-AC. I unboxed the unit, upgraded the firmware, and started to configure ports. I noticed that nothing would get a link light when connecting to port 2 so I disabled the port in the GUI then renabled it but it won't link up. Below are screen shots from the unit. **My router is attached to port 1 and my PC is attached to port 12** Any and all help is greatly appreciated!

[wayneorack]

Check your patch cable....

[Julian]

All ports are tested and link at a gigabit before the unit can be serialized and have a MAC address assigned- While I'm not saying that port 2 works now, I can tell you with certainty that it left our shop in working order.

One last thing to try is defaulting the entire switch - issue 'reload defaults' from the CLI or Utilities -> Default from any tab in the GUI.

I usually see ports not linking if there are underlying hardware issues, which unfortunately requires repair in most cases.

[bsloan9858]

Check your patch cable....

I tried several different patch cables

[sirhc]

Have no cable plugged into port 2 and do a Cable Diagnostics and post up a screen grab of that result.

[bsloan9858]

Have no cable plugged into port 2 and do a Cable Diagnostics and post up a screen grab of that result.

As requested

[sirhc]

Your Ethernet Transformer "appears" to be damaged. Will not know for sure until we open it up but if it looks like the one in the picture below it is damage and not defective.

1046.png (176.04 KiB) Viewed 4958 times

Date serialized: 12-11-2017
Technician: Eric
Model: WS-12-250-AC
MAC: EC13B262BA50
Firmware: v1.4.7 RevF
MB serial #: 0493A174300953
PS serial #: 153955-0933

You need to open an RMA ticket for repair: viewtopic.php?f=6&t=1259#p9343

[bsloan9858]

Thank you. Not sure how I damaged it though. I will get an RMA sent in a few mins.

[sirhc]

Thank you. Not sure how I damaged it though. I will get an RMA sent in a few mins.

Some common causes for Ethernet Transformer Damage:

Shorted or incorrectly crimped cable

Applying the wrong POE option such as 48V to power and AF radio where 48VH is requires and too much current on 2 pairs damages a cable.

Applying the wrong POE option such as 24VH to an airMAX radio which requires 24V

Applying the wrong POE option such as 48V to a radio like UBNT airMAX radio that wants 24V

Running an Ethernet cable between 2 devices on different electrical services and different ground potentials creating a ground bond through your Ethernet cable. In these cases you should run FIBER. If you have to run copper in this situation use Copper SFP module as the SFP ports do not offer POE and thus the center PIN is not connected to current and thus the DC negative is not bonded to Earth Ground and the SFP module will offer "some" isolation.

Here are some good posts on grounding:
viewtopic.php?f=30&t=2786&p=19279#p19279
viewtopic.php?f=30&t=1816
viewtopic.php?f=30&t=188
viewtopic.php?f=17&t=1786&start=30#p13447
viewtopic.php?f=30&t=1429