All Windows machines started to not receive tasks anymore and to not get registered to a Task Server (TS).
The Task Server tab, inside the Altiris Agent, was not showing the TS name, or the tasks that it has ran.
severity='1' hostName='XYZ' source='NetworkOperation' module='AeXNetComms.dll' process='AeXNSAgent.exe' pid='10316' thread='20300' tickCount='2126367454'
Operation 'Direct: Head' failed.
Protocol: HTTP
Host: XYZ.xyz.com:80
Path: /Altiris/TaskManagement/CTAgent/GetClientTaskServers.aspx
Connection Id: 20353.10316
Communication profile Id: {3574FD79-5436-4680-8C78-C0040A58938F}
Error type: HTTP error
Error code: HTTP status 401: The request requires user authentication (0x8FA10191)
Error note: Authentication: Failed. Server refused to authenticate with provided credentials.
ITMS 8.1 X
Under:
Was checked the option "Use theses credentials" and the credential being used there was the "/root" credential for Linux/MAC machines.
Because of that, all Windows machines were falling.
Changed the configuration under:
And selected "Use Application Credentials" instead of "Use these credentials".
By doing that change the agents received the new "credential" to be used and the machines started to receive tasks and getting assigned to a Task Server (TS) again.