Buffalo LinkStation Pro Duo LS-WTGL/R1 User Manual page 15

Select Guest and click on Connect. Note: If you have configured share
permissions on your LinkStation, select Registered User and enter your
login credentials.
Select the volume that you want to mount, such as share or share-mac,
from the list of folders on the LinkStation.
The share will open. A link to it
Accessing LinkStation Data from a Mac
will appear on your desktop.
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