Universal security group in active directory keeps changing

We have had a universal security group setup that is used for email distribution and permissions.
Over the past three weeks we have noticed that somehow all of the members are getting removed and the group becomes a member of itself.
We haven't been able to figure out why it's happening, but it appears to be happening in the overnight hours because I check it throughout the day and the membership is okay. When I check in first thing the next morning the changes have been made.
I have tried installing the free version of Netwrix Active Directory change reporter, but it isn't showing anything about the changes happening to that group or members of the group.
MBischAsked:
Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

Brett DanneyIT ArchitectCommented:
Have a look if you have a group policy that is applying a Restricted Groups setting. On the policy under Computer Configuration click Policies, then Windows Settings, then Security Settings. Go to Restricted Groups. Look if anything is specified there, if so the setup is most likely wrong.

The group name should be the actual domain group name so domain.com\group name. Next in the property of group you will see two textboxes. One is called Members of this group. Any user or group added in this box will be the default for the domain group. So even if you correct the domain group in AD and add new users when the policy fires it will remove these users and only leave the ones specified in the restricted group policy.

This is the most likely place where your issue is coming from.
0

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
MBischAuthor Commented:
The explanation was very quick and clear.
I was able to find a group policy that had restricted groups and have since removed the settings.
0
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Active Directory

From novice to tech pro — start learning today.