I set up a single Server installation of TFS 2015 SQL Server+Sharepoint Foundation 2013+TFS 2015 on one machine. The Server has multiple IPs and each installation is listening on an different IP.
Sharepoint uses to IPs one for the normal SP-Sites and one for Central Administration. All IPs have an FQDN registered. The Sharepoint sites (Sharepoint - 80 and Central Administration) are configured to use HTTPS only and use the FQDNs. I could not get the SharePoint Web Services to run HTTPS only so I stick with default settings.
I also disabled the disabled the loopback check for the FQDNs so that the FQDN can be used on the same server. When running the TFS Configuration Wizard all went fine till the SharePoint settings. TFS keeps telling me that he cannot access the SharePoint websites or Central Administration. The urls are working with a browser from the same machine an I am out of ideas why TFS can't connect to SharePoint using the FQDNs. Using the machine name is not an option since "SharePoint - 80" and "Central Administration" running on the same port just different IPs.
Are there any settings I could try to make things work?