HP Web Jetadmin Software manual Find the following property

Table 3-4Primary and Secondary Protocols for PC-Connected Device Discoveries (continued)

PC-Connected Device Discovery Method	Primary Protocol	Secondary Protocol
IP range	SNMP	WMI
Specified addresses	SNMP	WMI
Active Directory	SNMP	WMI
Domain	SNMP	WMI

*IP broadcast discoveries send an SNMP query to a broadcast address. IP broadcasts will only find devices through WMI if the PC is able to respond to SNMP queries. The SNMP service must be enabled on the PC in order for it to respond to SNMP queries.

It is important to remember that discovery through the WMI protocol requires administrative access to the remote host being queried. The local admin password can be used but in many environments a domain user is granted administrative privileges on local Windows hosts. Administrative credentials are entered at the time of discovery by using the checkbox, Specify credentials for this discovery.

PC-Connected devices are added to the same All Devices list as are network connected devices. Devices that are discovered via PC-Connected Devices can be distinguished from other devices.

HP SNMP Proxy Agent

HP SNMP Proxy Agent is software that is installed on a desktop client PC. HP Web Jetadmin uses HP SNMP Proxy Agent to discover and manage locally connected (for example, USB-connected) HP printers and scanners. HP SNMP Proxy Agent exposes management objects through the Microsoft SNMP service on the client PC. A simple PC-connected device discovery in HP Web Jetadmin discovers the locally attached devices. HP Web Jetadmin then uses the proxy to gather additional information about the devices, such as remaining toner levels, page counts, and status. The HP SNMP Proxy Agent software is available from www.hp.com/go/ webjetadmin. For more information about the requirements and important support details, see the HP SNMP Proxy Agent Readme. This Readme is available from the HP Support Center.

Troubleshoot PC-connected Device Discoveries

Administrators can use the log files in HP Web Jetadmin to troubleshoot PC-connected device discoveries. The log files are useful when running Windows Management Instrumentation (WMI) or HP SNMP Proxy Agent discoveries. The log files do not capture details about network-connected device discoveries.

To enable logging, perform the following steps:

1.Use Notepad or a similar editor to open the DiscoveryManager.config.xml file. This file is available in the following directory:

C:\Windows\ServiceProfiles\NetworkService\AppData\Local\Hewlett-Packard\HPWebJetadmin \WjaService\config

2.Find the following property:

<property name="DiscoveryLogEnabled”> <type>HP.Imaging.Wjp.Sdk.Core.Framework.ConfigurationItemString </type>

<value>False</value>

</property>

3.Change the <value> entry to True.

4.Find the following property:

ENWW Discovery 127