Using Remote Desktop Gateway v8 on Windows 7

Last Updated January 8, 2019 by . First Published in 2012.

Using Remote Desktop Gateway v8 on Windows 7

A recent Windows Update breaks Remote Desktop Gateway causing "A valid gateway address must be specified." errors. Here's how to fix it.

A few weeks ago Microsoft released an update for Windows 7 SP1 which updates the RDP client to version 8.0 so that it can be used in conjunction with the latest protocols in Windows 8 and Server 2012. Under some circumstances, the update will fail to apply and Remote Desktop will fail to connect, especially if using a Remote Desktop Gateway.

A valid gateway address must be specified.

The Windows Update in question is KB2592687 and enables Windows 7 SP1 virtual desktop to be WAN ready with Remote Desktop v8 and RemoteFX. After installing the update you may notice that you still receive the message "A valid gateway address must be specified." when specifying a remote desktop gateway port number.

How to fix error "A valid gateway address must be specified."
Using Remote Desktop Gateway v8 on Windows 7
How to fix error "A valid gateway address must be specified."
How to fix error "A valid gateway address must be specified."

This may be due to the fact that the update has a prerequisite update which is marked as optional and is probably not already installed on your Windows 7 desktop. The solution for this involves uninstalling update KB2592687 via Control Panel -> Programs -> Uninstall Program -> View Installed Updates. You should then download and install KB2574819 which adds support for DTLS in Windows 7. This protocol allows client and server applications to communicate in a way that is designed to prevent eavesdropping, tampering, or message forgery, and is required only if you intend to use Remote Desktop.

How to fix error "A valid gateway address must be specified."
How to fix error "A valid gateway address must be specified."

Once installed you must install KB2592687 again, you must reboot for the changes tp take effect, after which you should note that your remote desktop client version number is now at version 8.

You can then open Remote Desktop settings and configure remote desktop gateway with a port number.

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  1. VD

    On Monday 21st of March 2016, V. Douglas said

    Thanks! This solved our issue of Windows 7 computers unable to connect to workstations through remote desktop gateway.
  2. AM

    On Monday 20th of May 2013, amit said

    Good one.It solves my problem.Keep it up.