Device discover fails - SNMP is disabled by default on new APC NMC firmware

New versions of the APC Network Management Card (NMC) firmware have the SNMP protocol disabled by default.  You cannot discover devices with this new NMC firmware in EcoStruxure IT Expert or Data Center Expert until SNMP is enabled. 

1. Connect to the device using HTTPS or SSH.
2. Enable SNMPv1 or SNMPv3 on the device.
3. Run the device discovery in the Gateway or DCE.

Note: The SNMP settings on previously discovered devices are not affected by a firmware update to a version that contains these security updates.

Read more about these security updates to APC devices.