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Can’t connect to the remote computer because the Remote Desktop Gateway server is temporarily unavailable error via SBS 2011 RWA

When you try to connect to your SBS server via Remote Web Access you get the following error:

“Your computer can’t connect to the remote computer because the Remote Desktop Gateway server is temporarily unavailable. Try reconnection later or contact your network administrator for assistance.”

In this case it happened because there was installed a third party web application. This application needed to run as a 32-bit application. So the DefaultAppPool in Internet Information Server (IIS) was set to Enable 32-Bit Applications to True.

Solution: Start Administrative Tools, Internet Information Server Manager, choose Application Pools and select DefaultAppPool and choose Advanced Settings… on the right menu.

To get the Remote Web Access working again you need to change the Enable 32-Bit Applications setting to Disabled again.

Please note, this would probably destroy your web application, so before changing the setting contact you third party web application supplier to make sure there is a solution available or you have to move the application to another server.

Posted in Blog, SBS 2011 by ronnypot at February 6th, 2012.
Tags: , ,

3 Responses to “Can’t connect to the remote computer because the Remote Desktop Gateway server is temporarily unavailable error via SBS 2011 RWA”

  1. Gwen says:

    http://blogs.technet.com/b/sbs/archive/2011/04/07/how-to-run-a-32bit-web-application-on-sbs-2008.aspx

    Should help getting those 32bit web apps working again. (This also works on SBS 2011).

  2. Mark says:

    i’ve got the same problem: rdgateway worked just fine and suddenly stopped after installing a 3rd party app by some software supplier. that’s why i thought of a 32bit app also: that wasn’t the case.

    i even reinstalled RDGateway: http://technet.microsoft.com/en-us/library/gg697165.aspx

    to no avail… any other idea’s?

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