How about in another browser did you tried to access it through firefox or incognito mode?
I heard before that their dashboard is inaccessible if you are using the latest Chrome or Firefox browser they can only access the dashboard if you use an older version or use an old version of Opera Mini you can try it. Also don't forget to try accessing it through Internet Explorer.
BitMaxz your solution seemed to work, using
https://wiki.gnome.org/Apps/Web browser as I dont support chrome/opera spyware
I can confirm firefox doesn't let me access the panel when gnome browser does
Although this solution isn't a complete fix as I do still have to restart the machine, but now 1 out of every 5 restarts makes it work, vs 1 out of every 100 or so like before.
thanks!