Solving problems that occur during installation, Computer is unable to discover a device – HP LaserJet 1320nw Wireless User Manual
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24 Chapter 3
Problem solving
ENWW
Solving problems that occur during installation
This section contains solutions to problems that might occur while initially installing the printer to a
wireless network.
Computer is unable to discover a device
1
Verify that the following cables are connected properly:
• Power cables
• Cables between the printer and the hub or router
• Cables between the hub or router and your computer
• (If applicable) cables to and from your modem or Internet connection
2
Verify that you have an active network connection.
• Look at the light on the network connector. If the light is on, the printer is connected to a
wired network. If the light is off, check the cable connections from the printer to the gateway,
router, or hub to ensure connections are secure.
• If the connections are secure, recycle the power on the printer.
Personal software firewall is blocking communication
The personal software firewall is a security program that protects a computer from intrusion.
However, the personal firewall might block communication between the computer and the printer.
If you cannot communicate with the printer, try disabling the personal firewall. If you are still unable
to communicate with the printer, then re-enable the firewall. If disabling the firewall allows you to
communicate with the printer, you might want to assign the printer a static IP address and then
re-enable the firewall. For information about firewalls that are used in an HP Jetdirect environment,
see
Device is unable to connect to the network after removing cable
(infrastructure only)
If the access point/gateway has MAC filtering enabled, enter the MAC address of the printer into
the access point. The printer should then be able to connect to the wireless network. For more
information, see
Wireless access point (WAP) filters MAC addresses
System Requirements Error: No TCP/IP error displays
Make sure your LAN card is installed properly and set up for TCP/IP (Windows only). For more
information, see