I'm using connman 1.33 on Ubuntu 17.04.
I've just installed it by running sudo apt install connman. This command also removes NetworkManager.
Right after installing, I was able to connect to my WPA2 protected wifi network and get an IP address by running:
connmanctl
> scan wifi
> services
> agent on
> connect wifi_<hash>
This was 3 minutes ago. I then rebooted, and executed the commands again.
Now, connmanctl shows me an error after entering scan wifi:
Error /net/connman/technology/wifi: No carrier
How can I resolve this problem?