During the SEPM installation no problem was displayed, I know that it runs some test connectivity and others.
I am checking these doc:
https://support.symantec.com/en_US/article.TECH163...Prepare computers to install the Endpoint Protection 12.1 client
https://support.symantec.com/en_US/article.TECH163...Communications Ports and Protocols
After running Symhelp from the SEPM 12.1.6 installed on the Server it shows 3 ip:
127.0.0.1 Porta 8014 green
169.254.205.21 Port 8014 green
192.168.1.5 (IP Server) Port 8014 Red impossible to access
Others all green.
I tried also to disable the Windows Firewall but with the same result.
How to check and eventualy open that port ?
On one client Windows 8.1 I had to disable UAC and enable the Remote Registry service to run automatic to have the push installation (no way using email\web server link).
On another client Windows 8.1 also with that 2 fix no way to push installation. (same domain but the Client has a virtual ethernet by hyper-v instaleld on client)
In any case from SEPM the PC client don't appear into the Computer managed.
The solution could not be to install unmanaged version as I want it ;)