TMG 2010 SP1: Cannot publish a website through TMG server when using any port except port 80

Introduction

Cannot create a weblistener using any port other then 80 for non-ssl website publishing or trying to modify WebListener settings via UI for non-ssl website publishing. For example trying to use port 8080 on the listener as the port number in front of non-ssl connection option it gives an error:

Repro steps

Create a weblistener for non ssl connection
In weblistener properties, click on connection tab and change the port to 8080
Will receive an error: “web listener is configured to use SSL, you must specify a certificate".

Workaround:

Run the script:

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ListnerName= WScript.Arguments.Named("Listener")

ListnerPort= WScript.Arguments.Named("Port")

set curArray = CreateObject("FPC.Root").GetContainingArray()

set listener = curArray.RuleElements.WebListeners.Item(ListnerName)

listener.Properties.TCPPort = ListnerPort

listener.Save

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Save it as SetListenerPort.vbs
Run it from elevated command prompt
SetListenerPort.vbs /Listener:<ListenerName> /Port:<PortNumber>
Where <ListernerName> and <PortNumber> should be substituted to the actual parameters.
Close and open tmg console. The port should be changed.

STATUS

Microsoft has confirmed that this is a problem in the Microsoft products

Author
Masoud Hoghooghi
Escalation Engineer
Microsoft CSS Forefront Security Edge Team

Technical Reviewer
Brennan Crowe
Support Escalation Engineer
Microsoft CSS Forefront Security Edge Team