Remote Desktop Problem in Windows server 2008 R2

Dear all,

I have a strange problem with Remote Desktop in Windows Server 2008 R2. I cannot access the server remotely and I checked everything, the service is working and the license as well. It was working before and suddenly it stopped working.

When I choose "Allow connections only from computers running Remote Desktop with Network Level Authentication ( more secure), it works from windows 7 as it suppose to. However when I choose "Allow connections from computers running any version of Remote Desktop (less secure)", the remote desktop is not working on windows 7 and XP.

Windows XP is installed on most of the computers so, I need it to work with this windows.

Could you please help me solving this problem.

Thanks
nettech1998Asked:
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barrykflCommented:
First ,Assume your server is allowed RAS. pls check window 7 / windows Xp client 's firewall , if u can acess with fe diable.then fine tune your client side.
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nettech1998Author Commented:
It was working before and yes the firewall is accepting remote desktop connection..
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nipponsoulCommented:
Have you tried updating your client Remote Desktop Connection to the 7.0 version?

Please have a look here:

http://support.microsoft.com/default.aspx?scid=kb;EN-US;969084#appliesto

If not, any chance you have a Group Policy in place?

Also when you open mstsc can you go to:  Remote Desktop Connection > Experience > Allow the following and deselect all and see if you can connect that way ?
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jerseysamCommented:
Make sure that the user you are logging on as is a Local Admin on the remote PC
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Raymond PengSystems EngineerCommented:
Do they have the latest updates and service packs?
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nettech1998Author Commented:
come on guys, it was working before!!!

The server is Domain controller and AD is installed on it...

some of the computers are workgroup and they use A Domain User to log in to the server remotely and I tried to update some of the clients RD, but no use.

The server RD connection version is 6.1.7601....
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asavahCommented:
Did you check the log for any clues?
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SeaSenorCommented:
by: l33tf0b
"Do they have the latest updates and service packs?"

I agree you need to check this....but.... also, check and see if a recent update could be causing the issue.

additionally, make sure you have a firewall exception for port 3389 in group policy, and the policy allows you as a user to use remote desktop.
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hecgomrecCommented:
I will have to say, this happens often in my organization.

Most of the time is due to DNS.  If your DNS are not updated correctly remote Desktop can not locate the right computer to stablish the link.

Windows 7 works different in this matter compared to XP, Win7 will use the full computer name (pc1.yourdomain.local) but XP will work with your DNS to find the pc. if 2 or more PC share the same A record in your DNS you won't be able to connect.

This is due to DHCP leasing time and users turning on of off their computers specially if they turn them of for a long period or you do changes in your system.  I will recommend to check your DNS first.
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nettech1998Author Commented:
Thanks to all...

I solved the problem by checking the DNS problem and removing & reinstalling the Remote Desktop Role...

It's working fine now.
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nettech1998Author Commented:
I solve it myself..
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