Randomly, on a system boot I might get this pop-up message:
CMST - Critical Error
Unable to create an interface to connman on the system bus.
CMST will not be able to communicate with connman.
- and the Connman System Tray icon will be either unavailable, or its' interface won't show any connections at all. I don't remember when the problem started, my current "solution" is to reboot - hoping it works after that. But now it seems to happen more frequently, and a single reboot sometimes is not enough to use Internet... How to check the logs for this CMST/Connman problem?