DNA failing when using HTTPS

[dtwoods83]

I am able to login to the device using HTTPS. But DNA is saying that it has failed to connect. Is there something special I need to enable? 

Here is the config for HTTPS on the 9300 switch: 

ip http server
ip http authentication aaa
ip http secure-server
ip http max-connections 48
ip http client source-interface Vlan xxx
destination transport-method http

Priv level is 15 

DNA version 2.2.2 

[dtwoods83]

I have added these commands 

ip http secure-active-session-modules webui
ip http session-module-list webui NG_WEBUI
ip http session-module-list pki OPENRESTY_PKI
ip http active-session-modules pki

Still not working 

[yusun3]

Hi dtwoods83,

Do you mean that the reachability of the device in the inventory is unreachable?
Please check the following Discovery prerequisites have been met before you discover the device.

• Understand that the preferred network latency between Cisco DNA Center and devices is 100 ms round-trip time (RTT). (The maximum latency is 200 ms RTT.)
• Ensure at least one SNMP credential is configured on your devices for use by Cisco DNA Center. At a minimum, this can be an SNMPv2C read credential.

Here's a link for your further reference.
https://www.cisco.com/c/en/us/td/docs/cloud-systems-management/network-automation-and-management/dna-center/2-2-2/user_guide/b_cisco_dna_center_ug_2_2_2/b_cisco_dna_center_ug_2_2_2_chapter_010.html

Best regards,