A new Backup Exec logon account is unable to connect

Hi,

I have create a new backup exec logon account on the Manage Logon Accounts, with the correct credentials.

But, i could not connect into Backup Exec 2012 server by using the new logon account with the following additional information :

"Unable to connect to the service."

Then I try to change the account name at all Backup Exec services with the new logon account. But, all backup exec services could not restarting. When I resetting to old logon account, all backup exec services can restart normally.

What the problem with the new logon account? How I can connect into backup exec server by using the new logon account?

Thank's,

Barkah