My wifi credentials changed and printer wont open

[Paulneedshelp1]

I changed wifi and now cannot get new wifi to connect to printer,

It shows "deskjet 2600  printer offline

Computer telling me to turn on computer. Computer is on and wifi button flashing

[Kuroi_Kenshi]

Hi @Paulneedshelp1,

Welcome to the HP Support Community!

Thanks for reaching out!

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

I understand your HP DeskJet 2600 shows offline after changing Wi-Fi credentials, and the computer can’t connect to it even though it’s on and the wireless light is flashing. Let’s go through steps to reconnect your printer.

a. Confirm Wi-Fi Status on Printer
 - The blinking wireless light means the printer is not connected to the new Wi-Fi network.
 - Make sure the printer is powered on and near the Wi-Fi router.

b. Reconnect Printer to Wi-Fi
 - On the printer, press Wireless → Wireless Setup Wizard (or go through the Settings menu).
 - Select your new Wi-Fi network and enter the correct password.
 - Wait for the wireless light to turn solid blue, indicating a successful connection.

c. Forget Old Network on Computer
 - On your computer, go to Wi-Fi settings → Manage known networks.
 - Remove any old connections related to the previous Wi-Fi.
 - Reconnect to the new Wi-Fi network and ensure your computer is on the same network as the printer.

d. Check Printer Status on Computer
 - Open HP Smart app or Printers & Scanners in Windows/Mac.
 - Remove the old printer instance and add a new printer.
 - The app should detect the printer on the new network.

e. Restart Devices
 - Power cycle the printer, Wi-Fi router, and computer.
 - Wait 1–2 minutes for them to reconnect.

f. Use USB Temporarily (Optional)
 - If Wi-Fi setup fails, connect the printer via USB to reconfigure Wi-Fi using the HP Smart app.

I hope this helps.

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Best regards,