We have a pretty basic structure for our Group Policy, basically we have our Default Domain Policy just doing Password settings and then we have an object for each OU (department). We have a had a list of Trusted Sites and Local Intranet sites in the "User Configuration\Windows Settings\Internet Explorer Maintenance\Security\Security Zones and Content Ratings". This has been working for quite some time now. All of a sudden it seems like we have been having issues as of recently.
We first had an issue with Local Intranet sites not applying which I ended up fixing with disabling Internet Explorer Enhanced Security and then making a Registry change to the IEHarden. Now after checking that it seems to be taking effect.
Today we had a user complaing about a site not showing up in the Trusted Sites, so I looked into that and now it appears that sites in the Trusted Sites are not taking effect. When looking through the settings of the GPO it shows all the sites. Also when I run GPResult on the client computer it shows that the GPO is taking effect. I am unable to view the Trusted Sites list in Internet Options because it's locked but when going to one of the sites it doesnt show as in the Trusted Sites list.
Does anyone have any ideas of what is going on?
Thanks in advance for the help.