I have a HP LJ P2015n. Should be on our network

To configure this model HP Laser as a network printer, please click on this link and follow my instructions ;-
http://www.fixya.com/support/r3559242-setting_up_hp_jetdirect_print_server_p

Is the jetdirect card part number a 615n? If so, replace it with a 620N. The 615 cards were bad from the get go. Hp recalled them for about a year providing free upgrades to the 620.

I'm afraid the formatter pcb is defect. You will have to replace it. Partnumber Q7805-69003.

Try typing the IP address of the printer..

Hi,
There is not wireless netwrok card is HP LJ P2015dn, However as i can understand you r using External Wireless Router or Wireless network or jet-direct card if u r able to work fine on USB than printer printing mechanism is working fine.
If u connect the printer via wired network connection and it keeps on loosing IP address than it may be problem with onboard network card of the printer.
If printer keeps on loosing IP Address than try upgrading the firmware of the printer.
To check the firmware and IP Address of the printer print a configuration page by pressing and holding down green button for 6 to 7 seconds

the printer will only show the 0.0.0.0 IP-address when he cannot contact the DHCP server. check your physical network connection (see if the leds next to the network port on the printer are lit or flickering) and the DHCP config for this printer. if you work with a manual DHCP, you need to enter the printer's MAC address in the DHCP-entry for this printer.

try to change the driver on the network definition

To Me it looks like your printer is set to automatically select an available IP address. If there is no IP available you get the 0:0:0:0 You need a static IP set up for the printer, this will make sure that no one can use the IP. If this is a company printer, get IT to set it up for you. If its your home network you can set this by yourself by either connecting your printer via usb and using the software from HP or if you have an IP you can log into your PC by entering the IP address in the address bar of your browser. You should get the HP page up for your printer. Set the IP from there in the networking section. I hope this helps a little

Network Configuration page
NOTE The Network Configuration page is only available on the HP LaserJet p2015n,
HP LaserJet p215tn, and HP LaserJet p215nw printers.
A Network Configuration page prints whenever a printer configuration page is printed. You
can also print a Network Configuration page by pressing the network Reset button at the
back of the printer
The Network Configuration page provides information about the network configuration,
including the IP address, firmware revision, network statistics, protocol information, and so
on. The Network Configuration page automatically prints when you print a configuration
page from the control panel.
ENWW Printer information pages 37
Using the HP Toolbox
The HP Toolbox is a Web-based program that you can use for the following tasks:
● Check the printer status.
● Configure the printer settings.
● View troubleshooting information.
● View online documentation.
You can view the HP Toolbox when the printer is directly connected to your computer or
when you are using a supported network connection. You must have performed a complete
software installation to use the HP Toolbox.
NOTE You do not have to have Internet access to open and use the HP Toolbox. However, if you
click a link in the Other Links area, you must have Internet access in order to go to the site
associated with the link. See Other links for more information.
To install the HP Toolbox, you must install the TCP/IP protocol and the most recent version
of the Java™ Virtual Machine on the computer. You must also install the DOT4 protocol for
all USB connections, LPT connections for Windows 2000 and Windows XP, and LPT1
connections for Windows 98 S.E., Windows Me, and Windows NT 4.0. See the system
administrator or computer manufacturer's documentation for more information about
installing the TCP/IP protocol and the DOT4 protocol.