Auto Image Replication not working after enable accelerator

Hi,

I doing a project to setup 2 MSDP on 2 location, when starting, i put the server side by side and all run perfect even i enable accelerator

So i move 1 MSDP to DR side, replication starting not to work. then i disable acceletor, replication start to work back. I believe the setup is correct just not sure which port need to open for the accelerator to communicate

Do i need to open other port for acceletor to communicate ? 

Ports open between 2 site

HQ --> DRC

1556, 10102, 10082

DRC --> HQ

1556

NetBackup version 7.6.1.1 

MSDP windows 2012 R2 server

anyone please help ?