To connect your **HP DeskJet 2755e printer to Wi-Fi**, follow these key steps:

1. **Power on the printer** and ensure it is ready.

2. **Enter setup mode on the printer:**
– Press and hold the **Cancel** button and the **Wireless** button simultaneously for about 3 seconds until the Power button starts flashing and then the Wireless button flashes. This means the printer is in setup mode.

3. **Use the HP Smart app:**
– Download and install the **HP Smart app** on your smartphone or computer.
– Open the app and click the **plus (+) icon** to add your printer.
– Select your printer from the list.
– The app will search for available Wi-Fi networks.
– Select your Wi-Fi network and enter the Wi-Fi password carefully.
– Follow further prompts in the app until the setup completes.

4. **Confirm connection:**
– The wireless light on the printer should turn **solid blue** indicating it is successfully connected to Wi-Fi.

Additional troubleshooting tips if the connection is problematic:

– Ensure your Wi-Fi is working properly and the password and network name (SSID) are entered correctly.
– Check that no firewall is blocking ports 9100 and 515 which HP Smart needs.
– Reduce interference by keeping the printer and router close and away from devices like microwaves or cordless phones.
– Update the printer’s firmware and use the latest version of HP Smart.
– Verify wireless security settings are compatible (WEP, WPA, WPA2).

This procedure is based on official HP tutorials and recent guidance on connecting the DeskJet 2755e model to Wi-Fi networks[1][2][3].