acannon

I know that it has been awhile since the last post here, but I have been searching for a solution to this problem for a long time and I believe I have found a solution. My computers are on a domain with Active directory. When they are not in a managed group, the log on is quick. When the machines are put into a managed group, it takes 599 seconds to load (10 minutes) the desktop. When I read the last post here regarding DNS, it prompted me to start looking at this, and this is where I saw the IPV6 checkbox. My DNS settings are automatically provided for me, but I added them anyway. BUT I also removed the checkbox for IPV6 (Since I'm using DHCP with IPV4) and then restarted the computer. The computer is now in the managed group in active directory and it's logging in quickly.
My reason for posting this is because I have not been able to find any documentation on this particular problem and I hope this will help someone else.
Since I started writing this post, I thought I would narrow it down some more. I removed the DNS settings and now they're set to automatically obtain, logged off and back on. It logged on instantly. So I'm fairly certian that it is the IPV6 checkbox causing this.