Problem with backup in DD2200 failed to open a DD Boost connection to using the supplied username and password

Hello,

I have a problem with my data domain devices DD2200 when backup its showing error “failed to open a DD Boost connection to using the supplied username and password “

DD2200 is adding successfully in my netvault

My DD2200 os version 5.7.5.0

My netvault version is 11.2.0.16

Please help me on this

Thanks