Application Visibility issues

[Karl Wilson]

Hi Guys,

I have 2 switches that are showing CBAR related health issues that i don't know how to resolve.

Image attached, has anyone seen this before?

I have tried to reconfigure the switch\cbar but that  doesn't do much at all

[Preston Chilcote · Accepted solution]

I think that first error explains all the rest.  Without a valid certificate the switch can't establish the https session to give data to Cisco DNA. Try using the Actions->Telemetry->Update Telemetry Settings workflow in Inventory.  Make sure to select "Force configuration Push" in the top of the popup.  That will reconfigure the certificate on the switches.

[Karl Wilson]

Thanks the force didnt work but i disabled and re-enabled telemetry and enabled cbar without issue. Thank you

[Preston Chilcote]

Great!  It occurred to me to put, in text, the error we are talking about so that google can find it and provide this advice to others: 

"Device never communicated via HTTPS, threshold X minutes. Recommended to check that Cisco DNA Center certificate is installed on the device."