Insure 'Anonymous' is not checked on the 'users' page.
Ah, it was checked, not sure how that happened.
Looking further into it though that didn't stop it.
Reading the help file, as I should have done already, I came across this;
Note however that if you are using Stunnel, all connections may appear to be coming locally
from the LAN as Stunnel is actually receiving the remote connections and forwarding these
to Blue Iris.
As I am running Stunnel this is what is causing it.
So don't run 'Non-Lan only' with Stunnel as anyone will have access to your cameras, if they use http
s:/.........