Besides most things going NOT as designed in the upgrade, we believe
we're updated to 10.3.1 for Primary and Sat's,

Noticed behaviour;

Clients still at 10.2.2 works so far.
Sat's updated to 10.3.1 can do Zen login, but must do so through the
login/pop app from zen.

Client's that (by mistake and/or test) was updated to 10.3.1 can NOT
login regardless of clearing cache, etc on the local WS.
They simply have to be used logged in to the network but NOT zenworks.