Hi @tok6,
Welcome to the HP Support Community.
Thank you for posting your query. I will be glad to help you.
I understand that after recent network changes involving a new router setup in Access Point (AP) mode, your HP OfficeJet 5200 prints fine from Macs, but printing from Windows 11 PCS gets stuck in the queue, though scanning works. HP Smart shows the printer online, and you've already tried reinstalling drivers and running diagnostics without success.
Completely uninstall the printer driver
1. In the search box, type and open "Uninstall a Program".
2. Look for HP Printer software.
3. Right-click to uninstall.
4. In the search box, type and open “Devices and Printers”.
5. In the Devices and Printers, look for your HP printer. If you see it listed, right-click on it and choose “Delete” or “Remove Device”.
6. Open the run command with the "Windows key + R" key combo.
7. Type printui.exe/s and click Ok. (Note: there is a space in between “printui.exe” and “/s”).
8. Click on the "Drivers" tab.
9. Look for the HP Printer driver. If you see it, click on it and click “Remove” at the bottom.
10. Select Ok.
11. Select Apply and Ok on the Print Server Properties window.
12. Close Devices and Printers once the software and drivers are removed.
13. Restart the computer.
Then download HP Easy Start from the link below: Click Here
and run HP Easy Start and have to select Full Software and install the printer.
I hope this helps.
Take care and have a good day.
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VikramTheGreat
HP Support