I have a group policy (which ONLY deals with the zone assignment) -that is continually switching on and off with reboots.
I thought it was a conflicting group policy but when I run group policy modeling report it doesn't show any descrepancies that I can see.
I thought it may be an issue with one domain controller wasn't replicating my policy change to the other one, but this isn't the case.
I checked both domain controllers and they show the same information.
The assignment is on a user basis and is in:
user configuration > administrative templates > windows components > internet explorer > internet control panel > security and is
site to zone assignment.