I encountered an error when trying to connect to a server using Remote Web Workplace (RWW) from a Windows 8 PC to a Windows 2012 Server. The RWW was on our SBS2008 server. I was able to connect to Windows XP and the SBS2008 server itself. I just was not able to connect to the Windows 2012 servers.
After some searching, I found this post that had information to fix the problem. This ended up working: SBS 2008 – Is Network Level Authentication (NLA) supported through Remote Web Workplace (RWW)??
Essentially, a web file needs to be modified to change the way Remote Desktop Clients 6.1 connect to the servers.
Using Notepad, modify the following file:
C:\Program Files\Windows Small Business Server\Bin\webapp\Remote\tsweb.aspx
Add the following line to the configRdp61OnlySettings sub:
MsRdpClient.AdvancedSettings6.EnableCredSspSupport = TRUE
When you are finished the configRdp61OnlySettings sub should look similar to this:
sub configRdp61OnlySettings ' If GatewayCredSharing is not set, customer will see two logon prompts - for TSG and TS server, but we should continue On Error Resume Next if (<%=UseTsGatewayFlag%>) then ' Pass the credentials used for the gateway to the remote computer MsRdpClient.TransportSettings2.GatewayCredSharing = 1 MsRdpClient.TransportSettings2.GatewayDomain = "<%=RWWUtilities.QuoteVbscriptString(strQualifiedDomainName)%>" end if MsRdpClient.AdvancedSettings6.EnableCredSspSupport = TRUE end sub
Try the connection. It should work.