Lost the local network management interface-to-UPS communication. - again

[sz-a]

Hello,

On a SURTD5000 I get the error "Lost the local network management interface-to-UPS communication."

The solution in the first step ist reboot the NMC like mentioned in https://community.se.com/t5/APC-UPS-Data-Center-Enterprise/Lost-the-local-network-management-interfa....

But after some weeks the same error is there again. So I collected logs:

Config.ini contains:

Network Management Card AOS v3.5.5
Smart-UPS & Matrix-UPS APP v3.5.5

Events contain (in order):
System: Web user ... logged in from ... . 0x0015 (--> my logon)

UPS: Lost the local network management interface-to-UPS communication. 0x0102
UPS: passed via internal operation a self-test. 0x0105 (--> some hours before)

There is no event logged, which could cause the communication loss.

Data.txt shows:
216.64 222.57 229.95 3.68 23.69 17.08 49.98 100.00 54.31 25.87
0.00 222.82 229.92 3.68 23.59 17.02 49.97 100.00 53.69 25.87
218.93 223.39 230.03 3.68 23.42 16.99 49.97 100.00 53.62 25.87
--> Line at the Error time is empty (after date and time), also only after reboot further lines are logged.
0.00 230.78 229.92 3.62 23.17 16.68 50.03 100.00 53.91 26.25
0.00 230.70 229.89 3.62 23.28 16.78 50.00 100.00 54.12 25.87
229.37 230.46 229.96 3.62 23.24 16.81 50.00 100.00 53.09 26.25
229.46 230.51 229.90 3.68 23.71 17.07 49.99 100.00 54.28 26.25

The only error I can see is sometimes the Zero Voltage output, but this occurs much more than the communication loss.

What else can I try to analyze and solve this?

[JonPro]

Hi @sz-a 

Thank you for reaching out to the SE Community, my name is Jon and I will assist you with this query.  I am sorry to hear about the issue that you're having with the network management card (NMC).

I understand that you are having an issue with the NMC showing that it couldn't communicate or has lost the link between the NMC and the UPS.

Kindly go over the FAQ article below as it suggests the steps that you can do to determine where is the issue coming from.  It would require having another UPS and another card as you'd need to swap and/or install a card into the SmartSlot of the UPS.

I have noticed as well that your network management card's firmware is v3.5.5 which is old firmware and based on it, the card that you have might be the first generation NMC which is already obsolete.  I have included the link to the latest firmware applicable to the card as well.

UPS Network Management Card v3.9.3 Firmware for Smart-UPS with AP9617/18/19 

Why is my Web/SNMP (AP9606) or Network Management Card 1, 2 or 3 not recognizing my UPS or device? 

Video: How do I upgrade the firmware on an APC Network Management Card (NMC) or NMC embedded device ...