Debugging Failed Features

•  The attached image shows that there are failed features for my CSR1Kv device.
•  How is it possible to debug what APIC-EM is doing, or not.have the global credentials set up properly.Have tried searching the logs for "csr1kv", but nothing came back from the search. Expect that  should set the logging level on one of the services, but it is not clear which service. tried the "network-poller-service", but that didn't work anyway.
• APIC-EM is clearly able to connect to this device to some degree, probably with SNMP. It looks like, CLI connection is not working. Have tried setting the global CLI credentials, and the specific discovery credentials, several times, and that does not seem to make any difference here.

Polaris 16.3 is not supported.  That is why it is failing.  Support for 16.3 will be in September.

 The models are slightly different, hence the error messages in the inventory_status