Many "Communications lost" messages in event log of AP8641

[jmbarker]

This PDU was previously connected to a network of multiple PDUs, and is now being used independently. After disconnecting for a few months and now setting it up again, many error messages like the following appear in the event log:

Rack PDU 1: Component communications lost with Outlet Board 3 Meter.  Please verify that a terminator is inserted in either the In or Out port.
Rack PDU 1: Component communications lost with Outlet Board 2 Meter.  Please verify that a terminator is inserted in either the In or Out port.
Rack PDU 1: Component communications lost with Outlet Board 1 Meter.  Please verify that a terminator is inserted in either the In or Out port.
Rack PDU 1: Communications lost.
Rack PDU 1: Component communications lost with Phase Meter.

All monitoring reads 0 both from the Web UI and the display on the unit. I have tried attaching the terminator to both the IN and OUT ports (individually), with no difference. I have not tried running the unit without the terminator installed, nor have I tried two terminators or a different terminator (I only have one available).

I have tried re-seating the display connector, as well as the other three connectors under the display. No components on the boards look obviously damaged, nor do any of the internal wires. I updated the firmware to the latest version (7.1.3) successfully, with no change in behaviour. I reset the device to factory defaults, with no change in behaviour.

Are there any further troubleshooting steps I can take? This device worked perfectly 6 months ago, and nothing has changed except for being powered off during that time and no longer being connected to other PDUs.

I have attached the result of About->Support->Generate Logs, hopefully that will be of further help.

[Teken]

You have completed all of the relevant troubleshooting steps besides swapping the display with another to see if the problem follows the display to another PDU.

If you take a good working display and insert it into the trouble PDU and you see a fault it’s the PDU. If however the (swapped) display operates fine you at least know the PDU is also not at fault.

NEXT: Taking the problem display to a fully working & functional PDU. If the issue persists the display is faulty and needs to be repaired / replaced.

Let me know what you find and the break fix. If this feedback is relevant and on point mark this as solved. 👍🍺