change modem setting on HP c-4780

[PHILLYDAWG2]

need to change wireless setting because I got a new modem.

[Jay_G24]

Hi @PHILLYDAWG2,

Welcome to the HP Support Community

I'd like to help!

I understand you would like to change your network settings.

Install the full-feature HP print driver, which includes HP Printer Assistant (Windows) and HP Utility (Mac) software, to connect the printer to your Wi-Fi network using a temporary USB connection.

Connect the printer with a temporary USB connection (Windows)

Use HP Printer Assistant software, which comes with the full feature HP drivers, to connect the printer to the network by temporarily using a USB cable connection to transfer Wi-Fi settings.

1. Search Windows for your printer model name and number, and then click your printer from the list of results to open HP Printer Assistant.

   NOTE: 

   If the printer does not display in the search results, go to HP Software and Driver Downloads to download and install the full feature software and drivers.

2. Click the utility tab.

3. Click Printer Setup & Software, and then click Reconfigure Wireless Settings.

4. Follow the instructions to change the wireless settings.

5. When prompted, connect the USB cable and type the WEP or WPA key (network password).

   If you do not know your network password, go to Find the wireless network password or PIN to connect an HP printer.

   When the printer connects to the network, the wireless light on the control panel turns solid.

You may also refer to -  Wi-Fi connection is lost after a router or network settings change

Hope this helps! Keep me posted. 

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