I would guess you have two accounts for the same person.
The reason you are not getting is response is likely that no one has anything to offer on the subject.
So - we cannot fix it.
Hopefully "something" will help resolve the issue.
What?
Web Services is dependent on the connection between your printer and the HP services / servers network. It could be nearby (relatively speaking), or the connection might be far away. Generally, at least, connections are within a region. For example, if you are in the Northeast, it is unlikely your Web Services is dependent on a connection / service in the Western States region.
That explanation is meaningless in context - if it won't connect, you don't care why.
Assuming the connection problem is on the HP side, then when it is resolved, Web Services will start working again.
What?
The Community hasn't any way to check. We are not internal HP - we are a separate user community "outside" of the services and business groups within HP.
Yeah, but...
If it can be fixed on your side,
Try / Consider:
Restart everything, including the Router.
Leave the printer until everything else is restarted - then start the printer and let it try to connect.
What else?
Check your HP Smart / HP Connected account and see if the printer is still "connected" there.
Click Flagto switch to your region
HP Account - Login / Dashboard
Note: Log into your HP Account if / when you need central access to your device information, including the ability to update your personal information for HP Smart / HP Connected.
Note, that the printer might not show - it depends on where the Web Services is broken.
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If the printer is connected...
Although dependent on nearly the same thing, you could try using HP Smart for PC (Windows / MacOS) or perhaps HP Smart Mobile from a supported device.
HP Smart uses Cloud Services.
Both HP Smart for PC / Mac and HP Smart Mobile does require you are signed into the application.
Add your email to Windows Mail.
Start the app > select Scan > when the item has been scanned > select Save / Share > Share
Example - HP Smart - Windows - Main Menu
References / Resources
HP Smart / HP Connected> Troubleshooting > HP Printers - HP ePrint Job Does Not Print
HP Smart for Windows
HP Smart is an application available in the Microsoft Store
Learn how to use HP Smart on your Windows 10 computer.
Open the Software and Drivers Support Website for your printer > Check the Box Get the App
OR
HP Printers - Using the HP Smart App (Windows 10)
NOTES:
- Website includes the HP Smart software for Windows and Mobile devices, plus an FAQ section to assist with questions / issues
- Latest versions of HP Smart require that you be signed into the application
Mobile Printing – Options, How-to, Help, and Information
Print from your Android, iOS, or Amazon Fire device with the HP Mobile printing app.
Read this document first - Find your printer in the list of printers and supported applications
HP Printers - Mobile Printing Solutions Compatible with HP Printers
HP Smart - iOS and Android >>> Download, How-to. Videos, and FAQ
HP Printers - Using the HP Smart App (Android, Apple iOS)
Printer Home Page - References and Resources – Learn about your Printer - Solve Problems
“Things that are your printer”
NOTE: Content depends on device type and Operating System
Categories: Alerts, Access to the Print and Scan Doctor (Windows), Warranty Check, HP Drivers / Software / Firmware Updates, How-to Videos, Bulletins/Notices, Lots of How-to Documents, Troubleshooting, User Guides / Manuals, Product Information (Specifications), more
When the website support page opens, Select (as available) a Category > Topic > Subtopic
HP OfficeJet Pro 8710 All-in-One Printer series
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Question Resolved / Answered, Click "Accept as Solution".