Darren, You have it right. I have loopback in the 1st GPO attached to the TS OU. That is applying correctly as long as the scope includes authenticated users. In fact, all of my GPOs in this OU will work if I include authenticated users in the scope, but if I remove authenticated users and substitute with any other group or user, it fails. Regards, Bill McDonald Systems Administrator II Ebara Technologies, Inc. 51 Main Avenue Sacramento, CA 95838 Direct: (916) 923-7865 Fax: (916) 920-5066 wmcdonald@xxxxxxxxxxxxx ________________________________ From: gptalk-bounce@xxxxxxxxxxxxx [mailto:gptalk-bounce@xxxxxxxxxxxxx] On Behalf Of Darren Mar-Elia Sent: Thursday, March 13, 2008 11:06 AM To: gptalk@xxxxxxxxxxxxx Subject: [gptalk] Re: access denied (security filtering) Only one GPO needs to set loopback Bill. So if I understand correctly, you have a GPO setting loopback and then another GPO, linked to the TS OU, that is permissioned for a particular group and setting some user configuration settings, and that 2nd GPO is not applying to users logging into those TS boxes due to security filtering? Darren From: gptalk-bounce@xxxxxxxxxxxxx [mailto:gptalk-bounce@xxxxxxxxxxxxx] On Behalf Of McDonald, William Sent: Thursday, March 13, 2008 10:52 AM To: gptalk@xxxxxxxxxxxxx Subject: [gptalk] Re: access denied (security filtering) Hi John, Thanks for the input. I created a separate loopback gpo in the ts ou and applied to authenticated users and set replace mode. no other changes in this gpo. Unfortunately I have the same result for any other gpo in the ts ou that is applied to any more restrictive group that authenticated users. For both a single user, or a global security group with users in it I get the access denied (security filtering) error. Do my other gpos for the ts also need loopback inabled, or will the one loopback gpo take care of this? Thanks again, Regards, Bill McDonald Systems Administrator II Ebara Technologies, Inc. 51 Main Avenue Sacramento, CA 95838 Direct: (916) 923-7865 Fax: (916) 920-5066 wmcdonald@xxxxxxxxxxxxx ________________________________ From: gptalk-bounce@xxxxxxxxxxxxx [mailto:gptalk-bounce@xxxxxxxxxxxxx] On Behalf Of jpsalemi@xxxxxxxxxxxxxxxxxxx Sent: Thursday, March 13, 2008 9:35 AM To: gptalk@xxxxxxxxxxxxx Subject: [gptalk] Re: access denied (security filtering) Hi Bill, The terminal server is a member of authenticated users, that's why that works. You could also apply the policy directly to the machine name, same result. If your users are separated, which is sounds like they are, the easiest way to do this is to have a loopback applied to authenticated users, in replace mode. Leave the user section blank. Then you can add user type policies over your terminal server OU, that will apply to different groups of users using filtering the way you are trying to. Hope this helps, John "McDonald, William" <wmcdonald@xxxxxxxxxxxxx> Sent by: gptalk-bounce@xxxxxxxxxxxxx 03/12/2008 05:55 PM Please respond to gptalk@xxxxxxxxxxxxx To <gptalk@xxxxxxxxxxxxx> cc Subject [gptalk] access denied (security filtering) All, I am trying to apply a gpo on a terminal server to an individual or small group of users. I have loopback set, but my gpo will only work if I put 'authenticated users' in the scope. Any other group or user gets 'access denied (security filtering)' when you test the GPO in modelling. The terminal server belongs to a TS OU, and that is where my GPO is linked. Anyone see this before? Regards, Bill McDonald Systems Administrator II Ebara Technologies, Inc. 51 Main Avenue Sacramento, CA 95838 Direct: (916) 923-7865 Fax: (916) 920-5066 wmcdonald@xxxxxxxxxxxxx <mailto:wmcdonald@xxxxxxxxxxxxx>