HP 6400 won’t connect to my internet flashing purple

[Tempo1997]

I am trying to get my printer to connect to my Wi-Fi light is flashing purple , have reset router and printer have unplugged both printer and router, still shows purple light. HP Envy 6400 all in one printer series

[Nal_NR]

Hi @Tempo1997,

Welcome to the HP Support Community.

I understand that you are facing issues with connectivity. I'd like to help!

To assist better -

1.  I would like to know, is your router set to work on a 2.4 GHz network or a 5 GHz network band?
2. Are you trying to connect the printer to a home to a public network?
3. What is the distance between the router and the printer?

While you respond to that, try the below steps -

Connect the printer using Wi-Fi Protected Setup (printers without a touchscreen)

Use the Wi-Fi Protected Setup (WPS) button on your router to connect the printer to your Wi-Fi network.

Place the printer near the Wi-Fi router.

Put the printer in WPS connection mode.

Most printers without a touchscreen control panel: Press and hold the Wireless button for five seconds or until the wireless light starts to flash.

HP Deskjet 6000 and 6400, ENVY 6000 and 6400, and Tango printers: Press and hold the Wi-Fi button and the Power button on the back of the printer for five seconds until the blue bar flashes.

Within two minutes, press and hold the WPS button on the router until the connection process begins.

Wait for the Wireless light or bar on the printer to stop flashing. The printer is now connected to the network.

You may refer to -Wi-Fi connection is lost after a router or network settings change

Hope this helps! Keep me posted. 

Please click “Accept as Solution” if you feel my post solved your issue, it will help others find the solution.

Click the “Yes" on the bottom right to say “Thanks” for helping

[Nal_NR]

Hi @Tempo1997,

As we did not hear from you, I'll be closing this case for now. Hope I was able to fix the issue. If you need further assistance, feel free to reach out to us. 

Give us some reinforcement by clicking the Accepted Solution button, that'll help us and others see that we've got the answers and did reply to you!

[SofiaML]

Hi Community!

To connect your HP Envy 6400 printer, first ensure that setup mode is active.

If you have any difficulty activating setup mode, follow the steps below:

Use the Wireless button on the back of your printer to restore Wi-Fi setup mode.

1. On the back of the printer, press and hold the Wireless button  for five seconds.

   NOTE: 

   Your control panel might look different than the following example, but the steps are the same.

2. Wait for the Status light to turn purple.

3. Return to the app or software to find and add your printer and complete the setup.

   After activating the setup mode, you must start the setup of your printer, in the following link you will find the step by step on how to make the connection with the HP Smart application:

   https://support.hp.com/us-en/document/ish_1716406-1413451-16

   I hope it helps.

   Regards,

   SofiaML