Just in case you're having problem with this error message everytime you connect to your Ubuntu via xrdp:
Dia browser comment this:
"This is a PolicyKit (polkit) authentication prompt on Ubuntu asking for permission to perform Wi-Fi scans. It’s a common annoyance on Ubuntu desktop, especially when connecting via remote desktop (like RDP from a Windows app on macOS to your Ubuntu machine)."
NetworkManager always tries to scan the Wi-Fi when I'm logging in remotely. Remote sessions are treated non-local, so polkit asks for your password every time.
The fix is straightforward. Create a polkit rule to allow the scan without authentication.
1. Create this file: /etc/polkit-1/localauthority/50-local.d/allow-wifi-scan.pkla
[Allow Wi-Fi Scan]
Identity=unix-user:*
Action=org.freedesktop.NetworkManager.wifi.scan
ResultAny=yes
ResultInactive=yes
ResultActive=yes
3. That's it. Now restart polkit:
sudo systemctl restart polkit
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