Hi all,
I need a small support from you.
I'm trying to deploy a StarlingX 3.0 Distributed Cloud. The idea is to go for the following configuration:

System Controller: Baremetal AIO Duplex 
Subcloud: AIO Simplex

I'm facing an issue during the bootstrap of controller-1.
The installation of controller-1 proceeds slowly but pretty fine till the procedure tries to apply the "platform-integ-apps" application.

[sysadmin@controller-0 ~(keystone_admin)]$ system application-list
+---------------------+---------+-------------------------------+---------------+--------------+------------------------------------------+
| application         | version | manifest name                 | manifest file | status       | progress                                 |
+---------------------+---------+-------------------------------+---------------+--------------+------------------------------------------+
| platform-integ-apps | 1.0-8   | platform-integration-manifest | manifest.yaml | apply-failed | operation aborted, check logs for detail |
+---------------------+---------+-------------------------------+---------------+--------------+------------------------------------------+


Looking at the sysinv.log I notice the following error:

sysinv 2020-03-11 15:43:13.643 134388 ERROR sysinv.openstack.common.periodic_task [-] Error during ConductorManager._conductor_audit: HTTPSConnectionPool(host='192.168.206.1', port=6443): Max retries exceeded with url: /api/v1/nodes (Caused by NewConnectionError('<urllib3.connection.VerifiedHTTPSConnection object at 0x7fd67d719690>: Failed to establish a new connection: [Errno 111] ECONNREFUSED',)): MaxRetryError: HTTPSConnectionPool(host='192.168.206.1', port=6443): Max retries exceeded with url: /api/v1/nodes (Caused by NewConnectionError('<urllib3.connection.VerifiedHTTPSConnection object at 0x7fd67d719690>: Failed to establish a new connection: [Errno 111] ECONNREFUSED',))
2020-03-11 15:43:13.643 134388 ERROR sysinv.openstack.common.periodic_task Traceback (most recent call last):
:
: omitted
:
20-03-11 15:43:13.643 134388 ERROR sysinv.openstack.common.periodic_task     raise MaxRetryError(_pool, url, error or ResponseError(cause))
2020-03-11 15:43:13.643 134388 ERROR sysinv.openstack.common.periodic_task MaxRetryError: HTTPSConnectionPool(host='192.168.206.1', port=6443): Max retries exceeded with url: /api/v1/nodes (Caused by NewConnectionError('<urllib3.connection.VerifiedHTTPSConnection object at 0x7fd67d719690>: Failed to establish a new connection: [Errno 111] ECONNREFUSED',))


>From controller-0 I can succesfully ping  192.168.206.1. It seems more a problem with some certificates.

May I ask some guide/suggestion for addressing this issue ?

Many thanks in advance

/Giuseppe