SharePoint designer cannot open site error "the server cocould not complete your request"

3. SPD cannot open site, in the log: error when open Web Service: system. invalidoperationexception: a binding instance has already been associated to listen URI

Solution:

I found the problem to be In the name used by the server and in the bindings in IIS.

 

In this installation I'm using a split DNS (eg the internal IP domain is equal to the external IP domain ). the FQDN of the server is sp13.sp.com. the Windows Name Is sp13 and the Windows IP domain is sp.com. I defined https://sp13.sp.com as the main URL of the server and http://sp13.sp.com and http: // sp13 as alternate URLs. in the correspondent IIS web site I defined these bindings:

IP address protocol virtual server port

* Http 80

* Http sp13.sp.com 80

* Http sp13 80

There was a conflict between the first (generic) binding and the third binding. The (WCF) Client Services (and other services, too) Try to bind the same endpoint two times.

I solved the problem deleting the first binding.

SharePoint designer cannot open site error "the server cocould not complete your request"