Keep finding Norton VPN needing to be logged in

I keep finding that Norton VPN is waiting for me to login even when it has been running earlier and sure it was logged in then.  I presume that if not logged in then it is not running.

Not very important at home because I am on my own WiFi so reasonably secure but worrying if I am somewhere on an open WiFi connection.  If the software cannot reliably remember the login then can there be options to give a clear warning when not secure and possibly disable the WiFi connection? 

This also happens with the mobile phone where the secure VPN connection is nearly always more important.

I have one PC that runs 24/7 and a few days ago I found it sitting waiting for the login, it could have been like that for a few days.