18.3 Actions to be taken when an authentication error occurs

This section describes what actions to take when an authentication error occurs on an agentless computer after device discovery is executed:

Actions to be taken on the management server

Check the following items and take action if you find any problems:

Discovery range settings: Check that the discovery range is correctly set. For details about setting the discovery range, see 15.2 Specifying settings for discovery.
Registration of authentication information: Check that credentials (Windows authentication or SNMP authentication) are correctly registered. Note that when searching for a computer that is running a version of Windows that supports User Account Control (UAC), you need to set credentials for the built-in users of that computer. For details about how to register credentials, see 15.2 Specifying settings for discovery.
Credential Assignment: Check that credentials are correctly assigned. For details about how to assign credentials, see 15.2 Specifying settings for discovery.

Actions to be taken on the user's computer

Check the following items and take action if you find any problems:

SNMP authentication

Windows authentication

Add file shares.
If the administrative shares are disabled, enable them. You can check administrative shares by using the Windows net share command. If executing this command displays admin$, the administrative shares are enabled.
In the authentication settings, set a user who has Administrator permission and whose account is enabled.
On computers that are running Windows Server 2019, Windows Server 2016, Windows 10, Windows 8.1, Windows 8, Windows Server 2012, Windows 7, Windows Server 2008 R2, or Windows Vista, check whether User Account Control (UAC) is enabled. If UAC is enabled, use a built-in user that has Administrator permission. Alternatively, use a user that has Administrator permission and disable UAC.
On computers that are running Windows Server 2008, Windows Vista, or Windows XP, if the firewall is enabled, grant permission for files to be shared from external servers.
On computers that are running Windows XP, disable simple file sharing.