The Permitted Managers machine setting should be configured correctly. This setting determines the permitted list of hosts that can submit a query to the Simple Network Management (SNMP) agent running on the client computer. Simple Network Management Protocol is a protocol designed to give a user the capability to remotely manage a computer network by polling and setting terminal values and monitoring network events. The manager is located on the host computer on the network. The manager's role is to poll the agents for certain requested information. If you enable this setting, the SNMP agent only accepts requests from the list of Permitted Managers that you configure using this setting. If you disable or do not configure this setting, SNMP service takes the Permitted Managers configured on the local computer instead. Fix: (1) GPO: Computer Configuration\Administrative Templates\Network\SNMP\Permitted Managers (2) KEY: HKLM\Software\Policies\SNMP\Parameters\PermittedManagers