Endpoint not showing in SEC

Hello,

 

I'm trying to setup a SEC with a Relay Server.

The Relay Server is accessible throught a domain name.

The problem is, when I install an Endpoint (MRinit.conf pointing at the domain name), the Endpoint doesn't show up in the console.

At some point, and I don't really know why, it showed up, but is now unavailable.

Can't someone please help me setting this up ?

I think I have troubles understanding the proper configuration to make this works.

 

Thanks for your help.