To connect your **HP DeskJet 2800e printer to Wi-Fi**, follow these steps:
1. **Put the printer in wireless setup mode** by pressing the **Wi-Fi button and the Cancel button simultaneously for about 3 seconds**. The printer’s Wi-Fi light will start flashing, indicating it is ready to connect[2][3][4].
2. **Download and install the HP Smart app** on your smartphone or computer if you haven’t done so already[1][2][3][5].
3. **Open the HP Smart app and sign in** or create an HP account when prompted[1][5].
4. In the app, **tap the “+” (Add Printer) icon** and select your printer from the list[1][2][5].
5. **Follow the app’s instructions to select your Wi-Fi network and enter the password**. The app will then connect your printer to the Wi-Fi network[1][2][5].
Once connected, your printer’s Wi-Fi light should stop blinking and stay on steadily, indicating a successful connection. You can now print wirelessly from your phone or computer[1][2].
This method works both from a mobile device or a laptop via the HP Smart app. Alternatively, you can use the HP Printer Install Wizard on a computer to add the printer and connect it to Wi-Fi[1].
If you want, I can provide more detailed, step-by-step instructions or troubleshooting tips.