ATV3 4x no connection to Server



hi guys,

now i am totally confused. need i now plex connect?

since the latest update at and OSX 10.13.2 i can't connect to PMS wirth my ATV3.
The ATV3 needs a reboot, PMS Server is seen at the ATV3 but can't connect. 4x try and wait about
15-10 minutes he connects and plays my stuff.

i disabled ssl at PMS, but no difference.

any ideas?