In Finder, select Go > Connect to Server (⌘+K). In the field labeled Server Address, type the IP address or local name of the drive you’d like to connect to.
Click Connect. You may see a prompt for credentials. Select Registered User and enter your username and password.
Click Connect again.
To make the mapping persistent (meaning you don’t have to do it every time you restart), go to System Preferences > Users & Groups.
Select your account from the sidebar list, then choose the Login Items tab.
Click the + icon below the list of login items, then use Finder to navigate to the network drive.
Click Add. Find the network drive in the list of login items and toggle the checkbox to active to enable mounting at login.