Multiterm Online 2015 installation

Good morning,

We have just installed (first time for me) GroupShare + MultiTerm 2015 on a new Windows 2012 SR2 server. Everything went fine following the installation guide. GroupShare console, Studio GroupShare, MultiTerm Administrator are all working.

For MultiTerm Online, it is requesting a login. And if we use Windows authentication, it returns the following message.

"Invalid login, please check your details and try again. (Detail: There was no endpoint listening at 127.0.0.1:8085/.../discovery.svc that could accept the message. This is often caused by an incorrect address or SOAP action. See InnerException, if present, for more details.) "

What is the parameter we are missing ? Before with MTO 2014 we add an automatic connection, how is it possible to reproduce it ?

Thanks in advance,

PB