DAG credential error and PDDE service can't start

I test installed Backup exec server 15 with FP5 with last hotfix on ESXI virtual machine 2012 R2 with last updates to backup Exchange 2013 DAG IP-less Database using disk-based storage and installed the last agent version and restarted all member servers in dag so i need your help to fix these errors

1- when tested DAG credential error message appear "test failed , test recommended " while credential test successed on member servers and DAG backup Task run very well

2- i notice after restart Backup server can't run any tasks and message appear under job status " ready, no backup exec server are available " and notice in adamm log PDDE service can't start 

Waiting on PDDE service start (1200000 milliseconds)
Error waiting for PDDE service to start: 1060
PDDE service has not started; continuing...
Treat all LTO devices as if they are in UMD certified device list: DioAllLto = 0x0001
Use UMD certified device list: DioDrivers = 0x0002

notice i change PDDE service to 1200000 based on veritas article but unfortunately not solve my problem while if restarted services every thing work fine

Thanks