thanks for reading my questions and asking for details.
During the maintenance, we did not change the firmware. We rather extended the server by another NIC. We already had the PCIe x710 in and extended by x520.
The firmware stayed at the below levels during that process:
BIOS: 01.01.0008 - ME: 03.00.07.154 - BMC: 01.18.7601 - FRUSDR: 1.06
Any idea why the hardware update of the server triggered random behaviour on the IPMI?
The behavior described is not normal. (of course you knew that or you would not be making this post.)
When you added the x710 card, did you remove the AC from the system?
The system stand-by power is on any time AC is connected.
I am thinking something weird might have occurred if you hot plugged the card.