# Wi-Fi networks not listed

Check if network-manager is installed:

```
dpkg -s network-manager                                                                                                                                                                                      
```

if the response is the following:

```
dpkg-query: the package `network-manager' is not installed
```

go to [wpa_supplicant](wpa_supplicant.md)

if the response is the following:

```
Package: network-manager
Status: install ok installed
```

this line may appear in KlipperScreen.log:

`[wifi_nm.py:rescan()] [...] NetworkManager.wifi.scan request failed: not authorized`


in order to fix this polkit needs to be configured or disabled:

here is how to disable polkit for network-manager:

```sh
mkdir -p /etc/NetworkManager/conf.d
sudo nano /etc/NetworkManager/conf.d/any-user.conf
```

in the editor paste this:

```conf
[main]
auth-polkit=false
```

Then restart the service (or reboot):

```sh
systemctl restart NetworkManager.service
systemctl restart KlipperScreen.service
```
