Cant use maser user from Plex Web Player, managed user is OK.

Cant use main user from Plex Web Player, managed user is OK.
I dont get this…
On my local network the Plex Web Player cant find my server if I use the “master user”. If I use a managed user it is OK.
When I access the Web Player directly from my server I can connect with both “master user” and managed user works OK.
When I access Plex from the internet same story “master user” dont work, but managed is OK.
Can anyone point me in the right direction with this?
TIA

Now it is working again…
Both locally and from IOS app.
This happened right after upgrade to 1.1.3.27.
I had to restart the IOS app.
When I wrote the original post I had restarted both Plex and my PC. But then after some time it just worked.
As Laura Dern says “It is a strange world…”
Nice weekend to you all!