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The HP Community is where owners of HP products, like you, volunteer to help each other find solutions.
We would like to share some of the most frequently asked questions about Instant Ink. Check out this link: HP INSTANT INK, HP+ PLANS: INK AND TONER. .
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HP OfficeJet Pro 8720 All-in-One Printer
Microsoft Windows 11

When I open my HP Smart software and try to scan it asks me to log in. Upon entering my credentials I get a "We're sorry, somenthing went wrong.... (Error code: UA_400_EB000U0100). I have tried changing my password and double checked my loggin was correct.

When I try to log into my account online I run into a similar problem. "Something unexpected happened...We're sorry, but something went wrong. Sign out of this account now and try signing in again later.

Both of these issues have been going on for about a month. I have looked through support where some have had resolution. Please help. 

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Hi @jjvj2,


Welcome to the HP Support Community


I'd like to help!


I understand you are unable to sign in to your HP Smart App.


Our team is still working on fixing the issue.


As a temporary workaround, use HP Easy Start to set up the printer on your computer so you can print and scan files.

In Windows, go to 123.hp.com/setup, and then click Install HP Easy Start.

Open HP Easy Start, follow the prompts, and then select Full Software and Drivers as the software solution.

Once the setup completes, the printer is ready to use.


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

HP Recommended

I still can't log into instant ink. I already found my own work around for scanning. Hopefully you guys can fix the real issue with the scanning features.

HP Recommended

What is the exact error you are reciving when you try and login to instant ink website?

Have you tried using a different browser?



Try using a different browser to complete the enrolment, (Ex: Chrome, Firefox, Edge)

You may also refer to the document -- Enrolling in HP Instant Ink


Also, Make sure the date and time on the computer are set correctly.


If the error persists,

  • I've sent you a private message with further instructions to get this issue sorted.
  • In order to access your private messages, click the private message icon on the upper right corner of your HP community profile, next to your profile Name or simply click on this link:  https://h30434.www3.hp.com/t5/notes/privatenotespage


Hope this helps!


Keep me posted!

HP Recommended

It's all in my original post. I'll snap a picture next time I try.

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