my setup is
Windows server 2016 with Intel_Unite_Server_v4.0.3190.18
HP Elite Slice G2 with Intel Unite windows 10
Guest plugin 2.1.600.
However if connect from client to HP Elite Slice G2 HUB I can see the guest icon and I can turn on the guest icon more infor please see the see the screen image via desktop !!!
For more complete information about compiler optimizations, see our Optimization Notice.