Someone changed password from default RDA account used by vRanger.
The RDA password can be reset back to default. To reset password PUTTY into DR device using its local Administrator Account, the same used for the DR Console, and run the following command:
rda --setpassword
Default
Login is backup_user
Password St0r@ge!
Exit the PUTTY session.
You will now be able to add or connect to the repository from vRanger using the default password.