Just tried to test new build and I cannot get if connected to my server. Says unauthorized.
Have you tried to sign out and sign in again? We have no reports of such behavior 
Restarting my phone did the trick
On Mon, Mar 27, 2017 at 1:32 AM -0500, “sergiou87” forums+d264754-s6025034@plex.tv wrote:
Plex Forums https://forums.plex.tv/
sergiou87 answered your question: Build 9953 showing server as unauthorized
Have you tried to sign out and sign in again? We have no reports of such behavior