MSDTC issue(Agent Manager)

Hi All

    I try to add second Agent Manager to exist agent manager group.

But it show MSTDC error like below:

I try to set MSDTC parameter on component service and enable these like below:

But this error message still occur (I had disable firewall on both Windows Server :first agent manager and second agent manager)

Who could kindly provide some suggestion about MSDTC for me let me could add another agent manager (8.5) to exist agent manager group ?

Thanks!!

Wencheng