NOTE: Refer to your firewall documentation on how to configure the firewall port settings and how to add HP files to the "trusted" list.

NOTE: Some firewalls continue to cause interference even after you disable them. If you continue to have problems after configuring the firewall as described above, you might need to uninstall the firewall software in order to use the product over the network.

Advanced firewall information

The following ports are also used by your HP product and might need to be opened on your firewall configuration. Incoming ports (UDP) are destination ports on the computer while outgoing ports (TCP) are destination ports on the HP product.

Incoming (UDP) ports: 137, 138, 161, 427

Outgoing (TCP) ports: 137, 139, 427, 9100, 9220, 9500

The ports are used for the following functions:

Printing

Photo card upload

UDP ports: 427, 137, 161

UDP ports: 137, 138, 427

TCP port: 9100

TCP port: 139

Scanning

Product status

UDP port: 427

UDP port: 161

TCP ports: 9220, 9500

Faxing

Product installation

UDP port: 427

UDP port: 427

TCP port: 9220

Network setup

Manage your network settings

The HP All-in-One control panel enables you to perform a variety of network management tasks. This includes printing the network settings, restoring the network defaults, turning the wireless radio on and off, and printing a wireless network test.

Print network settings

You can print a network configuration page to see network settings such as the IP address, communication mode, and network name (SSID).

To print the network configuration page

1.Press the Wireless button on the product.

2.Press the button next to the down arrow on the display until Print Network Configuration Page is highlighted, and then press OK.

Restore network defaults

You can reset the network settings to what they were when you purchased the HP All-in- One.

Manage your network settings

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HP C4500 Advanced firewall information, Manage your network settings, Print network settings, Restore network defaults