Endpoint Protection

MY SEPM 12.1.5 server is dead now.

How to get new setup for SEPM. and how make all clients synced with the new server ??

Do you have a backup? If so, you can install a fresh SEPM and restore from backup, see the DR best practices:

Disaster recovery best practices for Symantec Endpoint Protection 12.1

Do you have the Database and recovery file backup with you, then follow this article.

    Disaster recovery best practices for Symantec Endpoint Protection 12.1

If you don't either of those files and the no. of client is less then I would probably suggest you to built a SEPM and start deploying communication update file. 

    How to deploy/update communication settings from your SEPM to your SEP clients machines with SEP 12.1 RU2 or newer

Hello,

In case you want all the policies and same old configuration back, you may have to follow the Disaster Recovery steps (hope you have a back up of the same.)

Disaster recovery best practices for Symantec Endpoint Protection 12.1

If this is not the case, you can Simply make sure, you have the server up with same IP address and host name and Install the SEPM of the same version on the server.

All clients would start reporting back under "My Company". 

Once, you have the clients communicating to the SEPM back, you can then create groups and policies as per your requirements again.

Hope that helps!!