To resolve this problem, make sure that the Thread account name or the referenced account is added to the IIS_IUSR group and assigned full permissions. Restart the Apex One and Apex Central services, and then see if the Policy Status changes from "Pending: Managed server deploying".

The error and Thread account to be added can be found in Application Event Viewer log. Below is an example:

Collapse section (Log Sample)

Event code: 3008 
Event message: A configuration error has occurred. 
Event time: 3-10-2019 16:18:26 
Event time (UTC): 3-10-2019 14:18:26 
Event ID: 64bfe5717d2f4cb89ebb6f5d0fbc15ff 
Event sequence: 1 
Event occurrence: 1 
Event detail code: 0 
 

Application information: 
   … 
 
Process information: 
    … 
 
Exception information: 
    …
Could not load file or assembly 'libLogClient4Net' or one of its dependencies. Access is denied. 


Request information: 
    Request URL: …
    Request path: … 
    User host address: … 
    User:  
    Is authenticated: False 
    Authentication Type:  
    Thread account name: APEXONESVR\sa-apexone