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HP Designjet T120 and T520 ePrinter Series - Wireless network issues

  1. Make sure the wireless (802.11) light at the top left of the front panel is turned on .
    If the blue light is not lit, the wireless capabilities may not have been turned on. To turn on wireless, press , then Settings > Wireless > On.
  2. Make sure that an Ethernet cable has not been connected to the printer. Connecting an Ethernet cable turns off the printer's wireless capabilities.
  3. Restart components of the wireless network.
    Turn off the router and the printer, and then turn them back on in this order: router first and then the printer. If you still are unable to connect, turn off the router, printer, and your computer. Sometimes, turning off the power and then turning it back on can solve a network communication issue.
  4. Run the Wireless Network Test.
    For wireless networking issues, run the Wireless Network Test. To print a Wireless Network Test page, press , then Settings > Print Wireless Network Test. If a problem is detected, the printed test report includes recommendations that could help to solve the problem.

Advanced wireless network troubleshooting

If you have tried the above suggestions and are still unable to connect to your printer to the wireless network, please try the following:
  1. Make sure that your computer's wireless networking has been turned on. For more information, see the documentation that came with your computer.
  2. If you are not using a unique network name (SSID), then it is possible that your computer could be connected to a nearby network that is not yours. The following steps can help you to determine whether your computer is connected to your network.
    Windows
    1. Click Start, click Control Panel, point to Network Connections, then click View Network Status and Tasks.
      – or –
      Click Start, select Settings, click Control Panel, double-click Network Connections, click the View menu, then select Details.
      Leave the network dialog box open while you continue to the next step.
    2. Disconnect the power cord from the wireless router. The connection status of your computer should change to Not Connected.
    3. Reconnect the power cord to the wireless router. The connection status should change to Connected.
    Mac OS X
    1. Click the AirPort icon in the menu bar at the top of the screen. From the menu that appears, you can determine if the AirPort is turned on and which wireless network your computer is connected to.
      note:
      For more detailed information about your AirPort connection, click System Preferences in the Dock, then click Network. If the wireless connection is working correctly, a green dot appears next to AirPort in the list of connections. For more information, click the Help button in the window.
    If you are unable to get your computer connected to your network, contact the person who set up your network or the router manufacturer as there may be a hardware issue with your router or computer.
    If you are able to access the Internet and are using a computer running Windows, you can also access HP Network Assistant at http://www.hp.com/sbso/wireless/tools-setup.html? jumpid=reg_R1002_USEN for help in setting up a network (this website is available in English only).
  3. Print the printer's Wireless Configuration page (see The network configuration pageThe network configuration page). After the page has been printed, check the Network Status and URL. The Network Status is Ready if the printer is actively connected to a network, or Offline if it is not (in the latter case, run the Wireless Network Test). The URL is the network address assigned to the printer by your router; you need it to connect to the printer's Embedded Web Server.
  4. If you have established that the computer and the printer both have active connections to a network, you can check whether they are on the same network by trying to access the printer's Embedded Web Server (see Access the Embedded Web ServerAccess the Embedded Web Server).
  5. If you cannot access the Embedded Web Server and are sure that both the computer and printer have active connections to the same network, the firewall security software could be blocking communication. Temporarily turn off any firewall security software running on your computer, and try to access the Embedded Web Server again. If you can access it, try using the printer for printing.
    If you are able to access the Embedded Web Server and use your printer with the firewall turned off, you need to reconfigure your firewall settings to allow the computer and printer to communicate with each other over the network.
    If you are able to access the Embedded Web Server, but are still unable to use the printer even with the firewall turned off, try enabling the firewall software to recognize the printer.
  6. If you have the HP software installed, you can check the printer’s status from your computer to check whether the printer is paused or offline, preventing you from using it.
    Windows
    1. Click Start, point to Settings, then click Printers or Printers and Faxes.
      – or –
      Click Start, click Control Panel, then double-click Printers.
    2. If the printers on your computer are not being displayed in Details view, click the View menu, then click Details.
    3. Do one of the following, depending on the printer status:
      • If the printer is Offline, right-click the printer, and click Use Printer Online.
      • If the printer is Paused, right-click the printer, and click Resume Printing.
    4. Try using the printer over the network.
    Mac OS X
    1. Click System Preferences in the Dock, then click Print & Fax.
    2. Select the printer, then click Print Queue.
    3. If Jobs Stopped appears in the resulting window, click Start Jobs.
  7. If you install the HP software a second time, the installer may create a second version of the printer driver in your Printers or Printers and Faxes folder (Windows only). If you have difficulties printing or connecting to the printer, make sure the correct version of the printer driver is set as the default.
    1. Click Start, point to Settings, then click Printers or Printers and Faxes.
      – or –
      Click Start, click Control Panel, then double-click Printers.
    2. Right-click the printer icon, and then click Properties, Document Defaults, or Printing Preferences.
    3. On the Ports tab, look for a port in the list with a checkmark. The version of the printer driver that is connected wirelessly has Standard TCP/IP Port as the Port description, next to the checkmark.
    4. Right-click the printer icon for the version of the printer driver that is connected wirelessly, and select Set as Default Printer.
  8. Try restarting the HP Network Device Support service (Windows only).
    1. Delete any print jobs currently in the print queue.
    2. On the desktop, right-click My Computer or Computer, then click Manage.
    3. Double-click Services and Applications, then click Services.
    4. Scroll down the list of services, right-click HP Network Devices Support, then click Restart.
    5. After the service restarts, try using the printer over the network again.
If you are able to use the printer over the network, your network setup was successful.
If you still cannot use the printer over the network, or if you have periodic problems in doing so, your firewall may be interfering, or there may be a problem with your network configuration or router. Contact the person who set up your network or the router manufacturer for help.

Add hardware addresses to a wireless access point (WAP)

MAC filtering is a security feature in which a WAP is configured with a list of MAC addresses (also called “hardware addresses”) of devices that are allowed to gain access to the network through the WAP. If the WAP does not have the hardware address of a device attempting to access the network, the WAP denies the device access to the network. If the WAP filters MAC addresses, then the printer’s MAC address must be added to the WAP’s list of accepted MAC addresses.
  1. Print the network configuration page. For more information, see The network configuration pageThe network configuration page.
  2. Open the WAP’s configuration utility, and add the printer’s hardware address to the list of accepted MAC addresses.