Hello,
I've got a simple all-in-one enterprise portal setup for development/testing but the Relational data store won't validate.
Thanks for any suggestions.
From the datastore config wizard:

From the server manager:

From the server rest admin:

From the server manager logs:
SEVERE Sep 14, 2023, 2:47:44 PM The connection property set was missing a required property or the property value was unrecognized. Bad login user[ ] DataValidator.GPServer
WARNING Sep 14, 2023, 2:47:14 PM Validate: null Data Store
WARNING Sep 14, 2023, 2:41:44 PM Validate: null Data Store
WARNING Sep 14, 2023, 2:19:09 PM ArcGIS Data Store is attempting recovery. Data Store
WARNING Sep 14, 2023, 2:18:27 PM ArcGIS Data Store encountered too many problems; however, the standby machine 'PORTAL.xyz.COM' will not proceed with failover due to validation check failures. Data Store
WARNING Sep 14, 2023, 2:18:27 PM Validate: Could not connect to server on machine 'PORTAL'. ArcGIS Data Store or ArcGIS Server on that machine may not be running or the machine is not reachable at this time. Data Store
WARNING Sep 14, 2023, 2:18:26 PM Validate: null Data Store
WARNING Sep 14, 2023, 2:18:26 PM ArcGIS Data Store has detected an issue with 'Machine: PORTAL'. Data Store
WARNING Sep 14, 2023, 2:18:18 PM ArcGIS Data Store has detected an issue with 'Machine: PORTAL'. Data Store
WARNING Sep 14, 2023, 2:18:11 PM ArcGIS Data Store has detected an issue with 'Machine: PORTAL'. Data Store
WARNING Sep 14, 2023, 2:15:16 PM ArcGIS Data Store is attempting recovery. Data Store
WARNING Sep 14, 2023, 2:14:26 PM ArcGIS Data Store encountered too many problems; however, the standby machine 'PORTAL.xyz.COM' will not proceed with failover due to validation check failures. Data Store
WARNING Sep 14, 2023, 2:14:26 PM Validate: Could not connect to server on machine 'PORTAL'. ArcGIS Data Store or ArcGIS Server on that machine may not be running or the machine is not reachable at this time. Data Store
WARNING Sep 14, 2023, 2:14:24 PM Validate: null Data Store
WARNING Sep 14, 2023, 2:14:24 PM ArcGIS Data Store has detected an issue with 'Machine: PORTAL'. Data Store
WARNING Sep 14, 2023, 2:14:17 PM ArcGIS Data Store has detected an issue with 'Machine: PORTAL'. Data Store
WARNING Sep 14, 2023, 2:14:09 PM ArcGIS Data Store has detected an issue with 'Machine: PORTAL'. Data Store
WARNING Sep 14, 2023, 1:54:18 PM Failed to validate the data store machine 'PORTAL'. 'Server machine 'https://PORTAL:2443/arcgis/datastoreadmin/machines/PORTAL/validate' returned an error. 'The requested resource could not be found in the system. Please check the parameters and try again.'' Admin