Physical printer TAB on Prusaslicer 2.8.0 on MK3S and shows only Connection Failed

[lezetuser]

Description of the bug

Physical Printer tab seems not to be able to setup the connection to the local Prusalink site on MK3S.
PrusaConnect connection works fine
Physical printer setting connection test works fine
I am able to send a file towards a printer
From Physical printer settings I can open the Prusalink local URL site.
I have tried via API key and HTTP and HTTP Digest as well

Project file & How to reproduce

1. Check the Prusalink and Prusa Connect
2. Open Prusa Slicer
3. Select the MK3s Physical printer
4. Check the connection to Prusalink via Physical printer settings - works fine
5. Send a GCode file to printer - works fine
6. Log in and check the PrusaConnect - works fine
7. Click on Physical Printer TAB
8. For a moment it seems the Slicer tries to setup the connection
9. Then the below message shows up
   

Checklist of files included above

• Project file
• Screenshot

Version of PrusaSlicer

2.8.0

Operating system

W 11

Printer model

not relevant

[jamckelvey]

+1
Slicer v2.8.1
Windows 10

[Robagon3D]

+1
Slicer v2.8.1
Windows 11
MK3S+ with RP0v2

[NeonSoap]

I have the same issue. Can send files through Slicer, can access PrusaLink in a browser, but "Connection failed" in PrusaSlicer Physical Printer tab.

Slicer v2.8.1
Windows 10
MK3S+ with RPi Zero W

[ncx-jag]

I too have the same issue. I hibernate every night to take my laptop home from work. When I return in the AM connection appears lost. F5 to refresh does nothing. Still can send jobs and phone app works fine.

Slicer v2.8.1
Windows 10
MK3S+ with RPi Zero W

[TheBraveKing]

+1
win 10
MINI+