The error message 'You have not logged in yet or your session expired' is linked to the randomised hardware (MAC) address feature on Windows computers.

To clear the issue:

1. Click the Windows (Start) button in the bottom left corner.
    
2. Select the gear icon for the Settings menu.
    
3. Click on Network and Internet.
    
4. In the left-hand toolbar, select Wifi.
    
5. Change the Use random hardware addresses to Off.