Question:- Hi, I purchased the HP Envy 6400 series printer a few days back, I installed the printer on my Windows 10 PC and on my Android phone. For a couple of days, it was working fine. However, after a week it keeps going offline. Sometimes it prints one or two pages and shows an offline message. I have been using HP printers for a very long time and this is the first time I am facing this kind of problem. I have to reboot the printer again and again to print some important documents but HP Envy 6400 constantly going offline. I am sure there might be a glitch in the connection but I am not able to figure it out. I need help to bring this HP Envy 6400 printer offline to online.

If you are using an HP Envy 6400 Series printer, you might also have faced this offline problem with the printer. However, as technology is updating, problems are also changing with printers. So the customer who is using this HP Envy 6400 printer is facing some problems with the wireless connection. Due to this HP Envy 6400 series printer keeps going offline.

Why does my HP Envy 6400 keep going offline?

There is a straightforward reason behind this problem. If you have any loose connection between your devices, your HP Envy 6400 Printer shows you an Offline message. HP Envy 6400 printer uses a wireless connection between the computer and router. So if you have changed your router password or your printer is connected to a different network, you will also face this problem. So in simple words, you must check all the connections for your wireless printer.

Welcome to Truebonzer HP Printer Community 

It can be frustrating when your HP printer keeps going offline when you want to print some important documents. But no worries, the Truebonzer support team will help you resolve this issue. Here are some steps that you can take to troubleshoot and hopefully resolve the issue with your HP ENVY 6400 or 6455 All-In-One series Printer.

Check the Printer Connection:

• Wireless:- Ensure that the printer is properly connected to your Wi-Fi network. If not, try to connect the printer again to your Wireless network.
• USB:- If your printer is connected using a USB cable then make sure the cable is not damaged and connected properly with the USB ports on both ends.

Update HP Printer Firmware:

• Please visit the HP support website and check for the latest firmware updates for your HP Envy 6400 series printer. Sometimes, firmware updates fix the connectivity issues related to the printer.

Restart Your Router:

• If your printer is connected to a home or offline Wifi, try to restart your router. Fluctuation in the IP address on the router can create problems with the printer connections. This can resolve the connection problems between the printer and the router.

Check for Driver Updates:

• Ensure that you have the latest printer drivers installed on your Windows 10 or 11 PC. You can download the latest drivers from the HP website.
• Visit the HP Support website, download and install the latest drivers on Windows 10 or 11 PCs for your HP Envy 6400 series printer. Outdated drivers can cause your printer to go offline.

Restart Your PC and Printer:

• Sometimes, restarting your computer and printer can help re-establish a connection with the printer.

Printer Troubleshooter:

• In Windows 10 or 11, you can use the built-in printer troubleshooter to diagnose and fix printer-related problems. Search for “Printer Troubleshoot” in the Windows search bar, select “HP Envy 6400 Series printer,” and follow the on-screen instructions.

IP Address Assignment:

• If your HP Envy 6400 printer is connected wirelessly then assign a static IP address to the printer. So that every time you restart your computer or printer, you will be connected to the same IP Address.

Reinstall the Printer:

• If none of the above steps work, you need to uninstall and reinstall the HP Envy 6400 printer again on your Windows 10 or 11 PC.

Steps to Fix HP Envy 6400 Series Printer Offline

• Hard reboot your HP Envy 6400 series printer.
• Go to wireless Settings>Wireless setup wizard.
• Now Select the name of your wifi and enter the password for it.
• Here your printer will connect to wifi again.
• Open HP Smart and delete the old printer.
• Now add a new printer in the HP Smart app.
• It will bring your HP Envy 6400 printers offline to online.

Also Read:- 

• How to find WPS Pin for HP Printer?