I'm looking for a solution or suggestions on top of what I have already tried for troubleshooting an issue that started after some changes to GPO's. The issue was not found until the day after the GPO changes were made and I was modifying the GPO's through RDP sessions.
I have multiple servers, with mixed OS 2003R2/x86 and 2008R2 standard editions in the same OU. Some of them are letting me RDP to them and others are not, after forcing gpupdate on each of them.
I have verified that allow access to all computers is checked in the remote tab, that the windows firewall is off and is set to allow everything when it's on. I've disabled the windows firewall service, restarted the server, restarted remote desktop connection service. I've searched for port 3389 listening and it is not (which is where my problem is), but I cannot figure out how to get it back to working, or why it quit working all the sudden and some of the others still work fine. This is in an all virtual environment, but it shouldn't make any difference. I've went as far as blocking all GPO inheritance and trying the steps then creating a GPO specifically to turn on RDP access to one of the servers and still cannot get it to work properly. Any help or suggestions would be greatly appreciated.