My 4155e in setup will not recognize my wireless password

[RBHI]

My 4155e has worked for 3 years on my wireless network. When we re set the router for another reason the connection to our laptops with the printer stopped. When I go through the HP Smart app to install the 4155e after the app recognizes the printer,  when it asks for the wireless network password, it won't accept the password. I even went into my "Century Link " account and changed the password, re starteded both the laptop, printer and router, and I still get the same message that the password is wrong.

Any Ideas?

[Max3Aj]

@RBHI, Welcome to HP Support Community. 

Thank you for posting your query, I will be glad to help you. 
Yes! Here are some troubleshooting steps to get your HP DeskJet 4155e reconnected to Wi-Fi:

Step 1: Ensure the Correct Wi-Fi Details

1. Double-check that you’re entering the correct Wi-Fi network name (SSID) and password.
2. Ensure there are no extra spaces before or after the password.
3. If your Wi-Fi has special characters (@, $, &, etc.), try changing it to a simpler password.

Step 2: Restart & Reset Devices

1. Restart your printer, router, and computer:

• Turn off the printer and unplug it for 1-2 minutes.
• Restart your router and computer.
• Turn everything back on and try reconnecting.

2. Reset Network Settings on the Printer:

• Press and hold the Wireless button (📶) and the Cancel (X) button on the printer for 5 seconds until the Wi-Fi light starts blinking.
• This resets the printer’s network settings.
• Try connecting again using the HP Smart App.

Step 3: Try Connecting via WPS

If your router has a WPS button:

• Press and hold the Wi-Fi button (📶) on the printer until it blinks.
• Press the WPS button on the router within 2 minutes.
• Wait for the Wi-Fi light to become solid.

Step 4: Use an Alternate Setup Method

Try connecting via USB first:

1. Connect the printer to your laptop with a USB cable.
2. Open HP Smart and follow the setup.
3. Once set up, remove the USB cable and check if Wi-Fi works.

Step 5: Check Router Settings

• Log into your router settings (usually via 192.168.1.1 or 192.168.0.1).
• Ensure 2.4GHz or 5GHz Wi-Fi is enabled.
• If you renamed your Wi-Fi, ensure the SSID broadcast is enabled.
• Disable MAC Address Filtering (if enabled).

Step 6: Manually Assign a Static IP

If setup fails, try manually setting an IP address:

Print a Network Configuration Page:

• Press the Information (i) button on the printer.
• Find the IP Address on the printout.
• Open a browser and enter the IP Address in the URL bar.
• In the Embedded Web Server (EWS), go to Network > Wireless and enter your Wi-Fi details manually.

I hope this helps. 

Take care and have a good day. 

Please click “Accepted Solution” if you feel my post solved your issue, it will help others find the solution. Click the “Kudos/Thumbs Up" on the bottom right to say “Thanks” for helping! 

Max3Aj

HP Support