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HP LaserJet Pro MFP - Solve wireless network problems

Wireless connectivity checklist
  note:
If you've been experiencing ongoing intermittent loss of network connectivity, then first update the printer firmware. For instructions on how to update the firmware for an HP LaserJet Pro printer, go to Update the firmware (c03754273).
  • Verify that the network cable is not connected.
  • Verify that the product and the wireless router are turned on and have power. Also make sure that the wireless radio in the product is turned on.
  • Verify that the wireless router has a frequency of 2.4ghz. If you're not sure about the frequency, refer to the manual, box or manufacturer label on the router/modem.
      note:
    If the frequency is higher than the recommended 2.4ghz, connectivity issues might occur. Most HP LaserJet Pro printers support 2.4ghz wireless modems/routers and cannot detect 5GHz networks.
  • Verify that the service set identifier (SSID) is correct. Print a configuration page to determine the SSID. If you are not sure the SSID is correct, run the wireless setup again.
  • With secured networks, verify that the security information is correct. If the security information is incorrect, run the wireless setup again.
  • If the wireless network is working correctly, try accessing other computers on the wireless network. If the network has Internet access, try connecting to the Internet over a wireless connection.
  • Verify that the encryption method (AES or TKIP) is the same for the product as it is for the wireless access point (on networks using WPA security).
  • Verify that the product is within the range of the wireless network. For most networks, the product must be within 30 m of the wireless access point (wireless router).
  • Verify that obstacles do not block the wireless signal. Remove any large metal objects between the access point and the product. Make sure poles, walls, or support columns containing metal or concrete do not separate the product and wireless access point.
  • Verify that the product is located away from electronic devices that might interfere with the wireless signal. Many devices can interfere with the wireless signal including motors, cordless phones, security system cameras, other wireless networks, and some Bluetooth devices.
  • Verify that the print driver is installed on the computer.
  • Verify that you have selected the correct printer port.
  • Verify that the computer and product connect to the same wireless network.
  • For Mac OS X, verify that the wireless router supports Bonjour.
The product does not print after the wireless configuration completes
  1. Make sure that the product is turned on and in the ready state.
  2. Turn off any third-party firewalls on your computer.
  3. Make sure that the wireless network is working correctly.
  4. Make sure that your computer is working correctly. If necessary, restart the computer.
  5. Verify that you can open the product HP Embedded Web Server from a computer on the network.
The product does not print, and the computer has a third-party firewall installed
  1. Update the firewall with the most recent update available from the manufacturer.
  2. If programs request firewall access when you install the product or try to print, make sure you allow the programs to run.
  3. Temporarily turn off the firewall, and then install the wireless product on the computer. Enable the firewall when you have completed the wireless installation.
The wireless connection does not work after moving the wireless router or product
  1. Make sure that the router or product connects to the same network that your computer connects to.
  2. Print a configuration page.
  3. Compare the service set identifier (SSID) on the configuration page to the SSID in the printer configuration for the computer.
  4. If the numbers are not the same, the devices are not connecting to the same network. Reconfigure the wireless setup for the product.
Cannot connect more computers to the wireless product
  1. Make sure that the other computers are within the wireless range and that no obstacles block the signal. For most networks, the wireless range is within 30 m of the wireless access point.
  2. Make sure that the product is turned on and in the ready state.
  3. Turn off any third-party firewalls on your computer.
  4. Make sure that the wireless network is working correctly.
  5. Make sure that your computer is working correctly. If necessary, restart the computer.
The wireless product loses communication when connected to a VPN
  • Typically, you cannot connect to a VPN and other networks at the same time.
The network does not appear in the wireless networks list
  • Make sure the wireless router is turned on and has power.
  • The network might be hidden. However, you can still connect to a hidden network.
The wireless network is not functioning
  1. Make sure that the network cable is not connected.
  2. To verify if the network has lost communication, try connecting other devices to the network.
  3. Test network communication by pinging the network.
    1. Open a command-line prompt on your computer. For Windows, click Start, click Run, type cmd, and then press Enter.
    2. Type ping followed by the router IP address.
      For Mac OS X, open the Network Utility, and then supply the IP address in the correct field in the Ping pane.
    3. If the window displays round-trip times, the network is working.
  4. Make sure that the router or product connects to the same network that the computer connects to.
    1. Print a configuration page.
    2. Compare the service set identifier (SSID) on the configuration report to the SSID in the printer configuration for the computer.
    3. If the numbers are not the same, the devices are not connecting to the same network. Reconfigure the wireless setup for the product.
Perform a wireless network diagnostic test
From the product control panel, you can run a diagnostic test that provides information about the wireless network settings.
  1. From the Home screen on the product control panel, touch the Setup button.
  2. Open the following menus
    • System Setup
    • Self Diagnostics
  3. Touch the Run Network Test button to start the test. The product prints a test page that shows test results.
Reduce interference on a wireless network
The following tips can reduce interference in a wireless network:
  • Keep the wireless devices away from large metal objects, such as filing cabinets, and other electromagnetic devices, such as microwaves and cordless telephones. These objects can disrupt radio signals.
  • Keep the wireless devices away from large masonry structures and other building structures. These objects can absorb radio waves and lower signal strength.
  • Position the wireless router in a central location in line of sight with the wireless products on the network.

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