Why does my printer work over USB but fail over Wi-Fi?

It tells you the USB printing route is working for that computer and printer. It does not establish that the printer has joined Wi-Fi, that the computer can find it wirelessly, or that the wireless printer setup is selected correctly.

Treat USB as a useful comparison, not proof that every part of the printer works. First note the exact printer model and what happens when you try wireless: for example, does the printer appear but show offline, or does it not appear at all? Those are different observations to report while you work through the checks.

Start with the printer’s wireless status. Check its display or the model’s instructions for whether Wi-Fi is enabled and whether it reports a connection. Then compare the network name shown on the printer with the network your computer is using. Avoid guessing at a password or repeatedly changing settings before recording what the printer currently shows.

For the listed HP Color LaserJet Pro printers, HP’s guidance includes checking that the wireless radio is on, the correct network name and security settings are configured, and the printer and computer use the same wireless network. It also suggests checking range and printing a Wi-Fi test report. These are model-specific recommendations; the supplied guidance does not establish that the same menu names or procedures apply to every printer. [S1]

Separate connection from discovery. Write down whether the printer says it is connected, whether the computer lists the printer, and the exact message shown when printing fails. If the printer is not connected, focus on its wireless setup and signal location. If it reports connected but is missing from the computer’s printer list, focus on the computer’s printer setup rather than changing the network name immediately.

Next, check that the intended printer is selected and that its driver is installed for the computer. HP includes driver installation and printer port among its checks for the listed models. [S1] Use the instructions for your exact printer and operating system; the source excerpt does not give universal steps or establish that a particular driver or port is the cause in your case.

Yes. Compare one simple print attempt over each connection, and record the outcome without interpreting it as a diagnosis. For example:

1. USB: “Printed the test page from [computer] at [time].”
2. Wi-Fi: “Printer [appeared / did not appear] in [computer’s printer list]; message: [exact wording].”
3. Printer status: “[connected / not connected / status unclear]; network shown: [network name or placeholder].”

If USB works and Wi-Fi does not, that comparison narrows the troubleshooting to the wireless route or its setup, but it does not identify the failed setting. If your model offers a wireless status or test report, save its result for your next check. HP recommends a Wi-Fi test report for the listed Color LaserJet Pro models; the supplied excerpt does not say what a report will show for other models. [S1]

Pause before resetting the printer or changing router settings. Gather the model, computer operating system, the printer’s reported wireless status, the network comparison, the exact error, and whether the printer is visible in the computer’s list. Include what you already checked and whether USB still prints. Use the printer maker’s instructions for that model or ask its support team to interpret the reported status and port or driver setup.

A useful support note is: “Printer: [model]. USB result: [result]. Wireless status on printer: [exact status]. Computer network: [name or placeholder]. Printer listed on computer: [yes/no]. Print error: [exact wording]. Checks tried: [list].” This gives a support person observations to work from without claiming a cause.