Failed to authenticate with remote system, system (Unable to deploy Agent) 5.9.1

[denn]

Hello, we installing a new Mcafee ePO 5.9.1 infrastructure and faced the issue with Agent deployment. 

Admin account not locked and have a full access to remote machine.

Question is how to troubleshoot and what logs need to check.

When deploying Agent (Add a new system in ePO) I am getting error.

Also we have dedicated 2 AH for workstations. But in Server Task Log  I see that deployment starting through ePO and not trying to use other 2 AH.

Starting deployment to computer PCName1 through the Agent Handler ePOserver.domain.NET

17/01/19 09:41:23

Failed to authenticate with remote system, system error: The network path was not found.

17/01/19 09:41:23

Failed to authenticate with remote system, system error: The network path was not found.

[Hem]

Please make sure that we are meeting the environmental requirement.

https://kc.mcafee.com/corporate/index?page=content&id=KB56386

[denn]

We are using same machine and same user. On ePO 5.3.1 working fine.

On new 5.9.1 I am facing this issue.

Any ideas?

From machine I am able to telnet to AH on 80 and 443 ports.

[cdinet]

When you deploy the agent are you choosing all agent handlers or a specific one?  Can the client telnet to the epo server itself on those ports?  From the epo server or agent handler, can you map a drive to the client to admin$ using the push credentials, and can you write to the windows directory?  Can the server or ah resolve the dns name of the clients? 

[denn · Accepted solution]

So found the solution.

Required to open Outbound port 445 from AH to Workstations.

https://kc.mcafee.com/corporate/index?page=content&id=KB66797

Last line in documentation.