TinCanTech wrote
Then check your log files for errors.
There is nothing in the logs, since the connection action itself does not occur automatically, only old records of manual connections.
Everything is configured correctly: the username and password are saved, the configs are shown in the menu of available connections of GUI, and manually connection works properly. I need to determine which configuration to use at boot, I didn't notice this in the documentation. It just doesn't do anything. Client starts but waits until I connect everything manually.