This issue can be applicable to CQB as well. Please check.
When for some reason server is down, CM gives an error message saying "This server cannot be connected and please reconnect." which has only one button 'OK'.
This is not a good UX. I need to click OK and then double click my host in order to reconnect again. It's almost certain that the user will need to reconnect. Therefore, instead, it should provide two buttons 1) "No" and 2) "Yes" asking "The host 'cubrid.org' has been disconnected. Would you like to reconnect?"