"Your computer can't connect to the remote computer because an error occurred on the remote computer that you want to connect to"

The below fix will also correct this error message:
"Your computer can't connect to the Remote Desktop Gateway Server. Contact your network administrator for assistance."

This fix is especially helpful for Windows 7 users. It's also easiest to download the .reg file and run it.

1. On your workstation right-click your Start button and choose Run (or press the Windows key + R)
2. In the Run window type regedit and press OK
3. Browse to the following key: HKEY_CURRENT_USER\Software\Microsoft\Terminal Server Client
4. Highlight/select the "Terminal Server Client" key/folder
5. On the right-hand side, right-click an empty area and choose New > DWORD (32-bit) Value
6. Name it: RDGClientTransport and give it a value of 1
7. Click OK, exit the Registry Editor, and try logging into the server

Alternatively, you may download the attached file named "Registry_RDGClientTransport.reg" and merge it into your computer's registry.