RWW fails in Windows/10

webentpr used Ask the Experts™
Hi –

I have a client running SBS 2011 and has 16 workstations attached to the domain.  They are either Windows/7 or Windows/10 clients.  They use RWW for remote access to the domain workstations.  Any Windows/7 workstation is capable of RWW – no problem to any of the workstations (Windows/7 or Windows/10.)  The problem is when the user attempts to access the domain clients from Windows/10 – they get the message
“Your computer can’t connect to the remote computer because a security package error occurred in the transport layer.  Retry the connection or contact your network administrator for assistance.”
The strange thing is the first time a Windows/10 client tries to connect through RWW it works.  After that we get this message.  Can access any workstation using Windows/7 so I don’t think it is the server nor the domain computer.
Tried deleting the history, download, etc from Internet options, but nothing changes.  Today, using a Dell laptop (Windows/10) was able to get on – but the second time I got the error message.  
Any help would really be appreciated.
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It turns out the fix I found worked on a laptop but not on the other workstations - here is the regedit entry
HKEY_CURRENT_USER\Software\Microsoft\Terminal Server Client
Name: RDGClientTransport
Type: Dword
Data: this worked for some computers but not for others.  The work around was to add this registry entry and then cleared the credential from the Credential Manager -

Doing this makes the connection works - but the second time the workstation tries to connect, it fails.  Clearing the Website Credential for the site, makes it work.


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