method, select the HP UPD in Printers folder, Print Properties, and check the Port tab. Is the
selected port defined correctly?
●
No, set to the correct port type or port address (TCP/IP address or DNS name)
●
Yes, proceed to next steps, either Troubleshoot Network connected or Troubleshoot Direct
connected.
5. Troubleshoot network connection/port
a. Can you ping the target print product by the TCP/IP address? By host name?
b. Can you ping the print server by the TCP/IP address? By host name?
c. Is the UPD’s target port defined by hostname or IP address?
d. If by host name fails, is the hostname registered in DNS? nslookup dns_name_of_device
e. Is the UPD installed client traversing network subnets to the target print server or printing
device? Is yes, is http and snmp traffic allowed through these connection paths? To define the
segments in the network path run the following from the UPD install client: tracert
print_device_ipaddress
f. Is the localhost or the target print server running an internet firewall? Are ports 160 and/or 80
open?
g. Can the UPD client host access the device's embedded web server? http://device_ip_address or
https://device_ip_address
h. Network issues such as denial-of-service at the print server or printing device, network service
interruption, or unauthorized and privileged access to the target print device or print server
i. TCP filter enabled: TCPIP-ADVANCED-Options Tab-PROPERTIES (types of traffic allowed to
pass to the TCP protocol)
6. Distinguish if target product is communicating bidirectional for printer auto
configuration via HTTP or SNMP?
Bidirectional communication over the network could occur via HTTP and SNMP dependent upon
target device. Errors specific to the protocol:
HTTP
a. Does the device support hp job capabilities ticket? To determine,
http://device_ip_address/hp/device/JobCapabilities/
JobCapabilitiesTicket.zip
b. HTTP port 80/tcp is enabled in the \ % SystemRoot %\System32\Drivers\Etc\services file?
c. Does the HP UPD installed host firewall allow HTTP traffic?
d. If the target product is on a separate subnet, does the network route HTTP traffic?
76 Chapter 6 HP UPD Administrative features ENWW
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