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MS Remote Desktop Connection for Mac Doesn't Connect to Windows 7

Posted on 2011-03-15
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Last Modified: 2012-05-11
Hey everyone,

I've got a Mac user that we're trying to set up an SSL-VPN connection for.  I've installed the Microsoft Remote Desktop Connection for Mac version 2.1.0 on her machine.  

While physically connected to the network, I try to connect to a Windows XP machine and it works just fine.  However, when I try to connect to her Windows 7 machine, it comes back with the following error:

"Remote Desktop Connection cannot verify the identity of the computer that you want to connect to.  Try reconnecting to the Windows-based computer, or contact our administrator."

Everything on the RDC preferences is set at its default.  Under the Security tab, it is set to "Warn me if authentication fails."

On the Windows 7 machine, the user is in the Remote Desktop Users group.  The machine's remote desktop settings are configured for "Allow connections from computers running any version of Remote Desktop (less secure)" via group policy.  

Can anyone tell me what I'm missing here?  This is happening regardless if I'm using standard user creds or domain administrator creds.

The user is using OS X version 10.6.6
error.jpg
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Question by:wanderson75
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17 Comments
 
LVL 53

Expert Comment

by:strung
ID: 35140172
What happens when you click OK in the screen above? On my computer it just goes ahead and connects.
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Author Comment

by:wanderson75
ID: 35140291
It takes me right back to the prompt to enter the computer name.
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Author Comment

by:wanderson75
ID: 35140311
hmmm...one thing I am seeing though is that the Mac isn't reporting a hostname to the DHCP server.
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Author Comment

by:wanderson75
ID: 35140420
Sorry to multipost as I find stuff.  I'm also seeing the unique ID in the DHCP tables as a 16 digit number where the 12 digit MAC address should be.  Could this have something to do with it?
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LVL 53

Expert Comment

by:strung
ID: 35140426
Try using the computer IP address instead.
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Author Comment

by:wanderson75
ID: 35140443
Yeah, I tried that one already.  It gives me the exact same error.
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LVL 53

Expert Comment

by:strung
ID: 35140536
Strange, I get a similar error (see attached screen shot) but it still connects.
Screen-shot-2011-03-15-at-1.42.1.pdf
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Author Comment

by:wanderson75
ID: 35140547
See, that's the one that I've seen on the walkthroughs too, but it's different than what I see on mine.  There isn't a nice explanation or a connect button.  What version of RDC are you using?
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Expert Comment

by:strung
ID: 35140554
Longshot, but if the unique ID is 16 digits, you may be trying to use IPV6. Try turning off IPV6 in the Mac network prefs.
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Expert Comment

by:strung
ID: 35140567
I am using RDC 2.0.0.

You could also try CoRD:  http://cord.sourceforge.net/
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Author Comment

by:wanderson75
ID: 35140579
Cord would probably work as a workaround on the local network, but it's not supported by the company that made the SSL-VPN appliance.  So I'm kind of stuck with this or nothing.  I just can't figure out what would make it look and act different.
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Expert Comment

by:strung
ID: 35140613
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Expert Comment

by:strung
ID: 35140635
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Accepted Solution

by:
strung earned 500 total points
ID: 35140646
This might be the most helpful since it is OS X specific:  

http://www.retainrelease.com/blog/?p=9
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LVL 53

Expert Comment

by:strung
ID: 35140666
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Author Closing Comment

by:wanderson75
ID: 35141541
That did it!  Kinda funny how it's the simple things.
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