Click here to Skip to main content
15,173,905 members
Articles / Web Development / IIS
Posted 28 Jun 2016

Tagged as



A Binding Instance Has Already Been Associated to Listen URI

Rate me:
Please Sign up or sign in to vote.
0.00/5 (No votes)
28 Jun 2016CPOL
Very simple problem to solve unexpected easily in IIS Manager


When installing a WCFservice, my browser told me kindly 'A binding instance has already been associated to listen URI.......'. That installation worked on so many other machines before, that it was strange.

How To Possibly Solve

When Googling on this problem, you will find tons of articles indicating to change a binding. In this case, it was astonishingly simply to fix this in IIS. Besides http, we use net.tcp for our services.

In IIS Manager, under 'Default Web Site', right-click 'Manage Web Site' and then select Advanced Settings. You will see a section called 'Behaviour'.

Image 1

Make sure the Enabled Protocols show 'http,net.tcp'. If you would state 'net.tcp,http', you would get the errormessage complaining about your binding instance being already associated.


  • 2016-06-28: First version


This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)


About the Author

Software Developer (Senior)
Netherlands Netherlands
I started in the eightees with Basic and QuickBasic. When the ninetees started dBase was my thing. Close to the millenium years I swapped to C++ and since 2003 it is only programming in c#.

There is one thing about me.
Not that kind of OO guy and definately not an ORM-fan. I know a database to well to give the importance of data out in the hands of a tool.

Comments and Discussions

-- There are no messages in this forum --