I have been using Remote Desktop Connection (RDC) from my Windows 7 Professional SP1 desktop for several years to connect to my servers. Suddenly, perhaps after a recent Windows update, I can no longer do this. Instead, I get this message: "Your computer can't connect to the remote computer because a security package error occurred in the transport layer." (screen shot attached).
My online research mentions something about adding a key to the registry, but I'm hesitant to do so and thought I'd check here to see if others have seen this problem and get their solutions.
reg.exe Add "HKCU\Software\Microsoft\T
If this will not work ,you can always delete this entry. So do not hesitate.
Also a missing DLL file might cause this.