I also have an OfficeJet Pro 6978 and am having the same problem as Canuck63. The printer goes offli

[MartyLZ]

I also have an OfficeJet Pro 6978 and am having the same problem as Canuck63. The pirinter goes offline during the day and has to be shut down and restarted in order to print. Been having the problem ever since a major Windows 10 update in early Feb. Need a resolution.

[Kumar0307]

@MartyLZ

Welcome to the HP Support Community!

Disabling Ipv6 and Assigning a static IP address to the printer may resolve this issue. Let us try these steps:

Step 1: Assign a Static IP

• Obtain the IP address of the printer – You can touch the “wireless” icon on the printer control panel to obtain the IP address.

• Type the IP address on your web browser(Ex:Google chrome) to obtain the printer EWS page on your computer.

• Go to "Network" tab - General - Select "Network protocols" - Select "Enable IPv4 only" (or similar) - Apply the settings.

• Go to the “Network” tab – Click on “Wireless (802.11) – Then click on “Network address (IPv4)

• Click on the radio button which says “Manual IP” and then click “Suggest a manual IP address” to give a manual IP address to your printer.

• Click on radio button which says “Manual DNS Server” and under manual preferred type 8.8.8.8 and under manual alternate type 8.8.4.4 (This is Google DNS server address)

Step 2: Reboot the printer.

Let me know how this goes.

Please click “Accept as 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!

[MartyLZ]

I was able to get as far as “Suggest a manual IP address”.  The button that would allow “Manual DNS Server” will not function.  What do I do now?

[MartyLZ]

I just noticed that my IP address has changed from 10.0.0.13 to 10.0.0.199 and the "Manual DNS Server" button is still not working. With the IP address having been changed, how "screwed up" is my printer and or computer now? Need help please.

[MartyLZ]

Printer and computer seem to be operating OK.  Will wait to see if printer goes offline by itself later in the day, or whether it stays online. Will let you know how it turns out later today.

[Kumar0307]

@MartyLZ

• Glad to know that you were able to assign a manual IP address to the printer by following the above steps.
• For more info, Click here to watch a video on how to assign a Manual IP to the printer. 
• Monitor the printer's functionality once changes have been made.

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 “Kudos/Thumbs Up" on the bottom right to say “Thanks” for helping!

[MartyLZ · Accepted solution]

Good News!!!  Clicking on "Manual IP" and then clicking on "Suggest a manual IP address" solved the problem. My IP address was changed slightly and I did not have to go to "Manual DNS Server" nor change the Manual Preferred Type nor the Manual Alternate Type. Those remained unchanged.  Printer has not gone offline all day. Thanks for the help.

[Kumar0307]

@MartyLZ

Glad to know that the issue is now resolved. Feel free to contact us with any concerns related to HP products.

Happy to help!