Netonix Forums

Hello, I have a WS-12-250-AC with three Ubiquiti M5-Ti Rockets attached. The switch is reporting around 200 W being used. I've updated the firmware on the switch to 1.4.2 and the Rockets have updated firmware as well. Ideas? The rockets report to be using 53.4, 49.9, and 81.4 Watts. I doubt that is actual.

If this is something that was originally OK but recently started it could mean the current sensors got damaged?

Please post up a screen grab of the Status Tab and the Device/Status Tab.

Current sensors normally get damaged from a surge or ground potential shift from poor grounding.

Is your tower ground bonded to your service ground?

Do you have a dedicated ground wire that runs up the tower to the radios/antennas that has a less resistive and shorter path to ground than your Ethernet cable?

Where is the switch located?

How far from the tower is it?

How far away is the Electric service that feeds your equipment box?

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

I can't seem to get a screen capture to paste into the response...

You take a screenshot with PrtScr
You past into Paint and trim and then save
You then click Upload File down by the blue buttons you use to submit your post
Browse to file then select then click upload
Then place your cursor where you want it and then click insert

My "guess" is that the Current Sensors have taken damage.

Since you posted the screenshot of the Status Tab and I know the MAC if you want to go ahead and pull the switch from service and replace with a spare.

Then open it up.

Then remove the switch board

Then take a picture of top and bottom of board with decent resolution and post here.

My guess is you will see damage either on the top or bottom of the board in the area bracketed in blue in the picture below from another RMA.

Now it will continue to operate like this just the current sensors are damaged and will never report proper wattage.

Typical reason for this is either a surge which exposed the current sensors to a voltage greater than 80V or ground potential shift/differential between your tower and your equipment box. Ground potential shift is the most common reason. Make sure tower ground is bonded to service ground. Have a dedicated ground run to all equipment that is less resistive and shorter path to ground than your Ethernet cables.

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

Thank you. The switch is in a remote location. I'll be traveling out there next week and will replace this with a spare. I'll also double check the grounding. I appreciate your assistance.

Even if damaged the repair cost is only $150.00
Your options would be to RMA it where you pay shipping both ways or simply purchase the replacement board and save the shipping.