Been having problems with the Hub+ App for a few days now; Password needs updating (when it doesn't); Authentication failure change your settings etc...
I use the hub on a galaxy phone and tablet, I've used it for years (since leaving Blackberry for Samsung), never had many problems before.
I've deleted the app reinstalled it, changed passwords numerous times, changed my Hotmail to 2-step authentication and back again. I can sometimes get it to work for a while and then it's back to Password needs updating. If I ignore the password msg, it often resynchs.
Been less than impressed with Blackberry support to be honest, I've heard nothing back from my emails.
I'm hoping this issue isn't going to see the end of Hub+, but not sure how much effort Blackberry will put into a fix if Microsoft decide this authentication setting is their new standard.