Can’t connect HP deskjet 3720 to the new router

[Michelle296]

Hi I had my deskjet connected and working and then had a new router installed and I can’t reconnect to my printer to change the wifi settings, can I do a factory reset on it or something?

[Kuroi_Kenshi · Accepted solution]

Hi @Michelle296,

Welcome to the HP Support Community! 

Thanks for reaching out about your query regarding printer's connectivity!  

We're thrilled to have the opportunity to assist you and provide a solution.

Yes! You’ll need to reset your HP DeskJet 3720 and reconnect it to the new Wi-Fi network. Here’s how:

1. Restore Factory Settings (Reset Wi-Fi)

1. Turn on the printer if it’s not already on.
2. Press and hold the Wi-Fi and Cancel buttons together for about 5 seconds until the Wi-Fi light starts blinking.
3. This puts the printer in Wi-Fi setup mode.

2. Reconnect the Printer to the New Wi-Fi

Use HP Smart App (Recommended):

1. Download & Open HP Smart on your phone/computer.
2. Click Add Printer and follow the steps to connect it to the new router.

OR Use WPS:

1. Press and hold the Wi-Fi button  until it starts blinking.
2. On your router, press the WPS button within 2 minutes.
3. The light should turn solid, meaning it’s connected.

Please refer to this link for more information :
Troubleshoot a Wi-Fi connection to an HP printer | HP® Support

After this, your printer should be back online and ready to print. 😊

I'm glad I could help! 😊 If this resolved your issue, please mark it as "Accepted Solution" and click "Yes" on "Was this reply helpful?"—your feedback not only keeps us going but also helps others find the solution faster! 👍✨

Take care and have an amazing day ahead! 🚀

Best regards,

[Michelle296]

Thanks so much kuroi! Very helpful, I have reset and it’s all working perfectly again, thanks so much!