This line in the log:
<info> (wlp3s0): device state change: need-auth -> failed (reason 'no-secrets')
means there is no passphrase setup. Add it using:
$ nmcli connection edit polina
once greeted with the
nmcli prompt, type:
nmcli> goto 802-11-wireless-security
nmcli 802-11-wireless-security> set psk
Enter 'psk' value: supersecretpassphrase
nmcli 802-11-wireless-security> save
Connection 'polina' (xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxx) sucessfully saved.
nmcli 802-11-wireless-security> back
Connection 'polina' (xxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx) sucessfully saved.
Then you should be able to:
$ nmcli connection up polina
Check the output of
journalctl -f while attempting a connection to see if the error is gone.
You can also use the Network Manager graphical interface if you feel more comfortable with it.