
To congure the HP Web Jetadmin service to restart automatically, follow these steps.
1. Access the Windows Control Panel and select Administrative Tools.
2. Select Services and then select HPWJA Service.
3. Right-click and select Properties from the menu.
4. Click the Recovery tab. For the First failure, Second failure, and Subsequent failures, select Restart the
service.
5. Click OK.
Ports
HP Web Jetadmin listens continuously on several ports and opens other ports for specic functionality. The
following table lists the ports that HP Web Jetadmin uses.
NOTE: HP Web Jetadmin uses Internet Control Message Protocol (ICMP) in the discovery process.
HP Web Jetadmin sends an ICMP echo request to determine if the IP is active.
Port number Type
Inbound (I) or
Outbound (O)
1
Description
69 UDP I TFTP Incoming Port: HP Web Jetadmin uses this port as a staging area for
rmware images during HP Jetdirect rmware
updates. Through SNMP,
HP Web Jetadmin triggers HP Jetdirect to retrieve rmware through this port.
80 TCP O HP Web Jetadmin uses this port to qualify the link to the HP Embedded Web
Server on the device and to retrieve the rmware images from the web.
161 UDP O SNMP: HP Web Jetadmin and other management applications use SNMP to
communicate with and manage devices. HP Web Jetadmin uses this port on
the printer to issue Set and Get commands to the SNMP agent.
427 UDP I SLP Listen: HP Jetdirect-connected devices use Service Location Protocol
(SLP) t
o advertise their existence. When the passive SLP discovery feature is
enabled on HP Web Jetadmin, devices send multicast packets to this port on
the HP Web Jetadmin server.
443 TCP O HTTPS: The HP Web Jetadmin service and HPWSProAdapter service send
device congurations and queries to this port over HTTPS.
HPWSProAdapter uses this port to communicate with devices that do not
support Web Services and are congured to redirect all of the network trac
to HTTPS.
445 UDP O WMI Communication: Windows Management Instrumentation (WMI) is a
protocol on Microsoft Windows hosts. HP Web Jetadmin uses WMI to detect
the presence of a printer on the Windows host. This is one of the ports on the
Windows host that WMI uses to allow communication from outside servers,
including servers running HP Web Jetadmin.
843 TCP O HP Web Jetadmin uses this port to congure some settings, such as fax and
digital sending, on some HP MFP device models.
1433 UDP O Microsoft SQL Server: By default, HP Web Jetadmin installs the SQL Server
database on the same host. Optionally, you can congure HP Web Jetadmin
to communicate with a SQL Server database on a dierent host.
HP Web Jetadmin uses this port to facilitate communication with a remote
SQL Server database.
ENWW Ports 11
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