Working with support.
TS 16.6 on Linux, iw-cc.war and eventsubsystem.war fail to deploy if they do not have external (port 80) access. That is the norm here
There seems to be 2 issues, one is trying to download XSD from www.springframework.org - that was a know issue and a jar update took care of it. Still on my system iw-cc does not deploy, with an NPE. Support has not reproduced that yet.
Will update when this gets resolved.