When looking at the Index size within the Storage Statistics report in Archive Manager, The Index size is reported as 0
The IIS server checks the size of the Folder given for the Index location.
If this has been configured as a local path (Eg, C:\Archive Manger\Index) the IIS server checks this path. If the Index is on a different machine to the IIS server, it will report the size as 0.
Share the Index folder.
Give Everyone Full Control to the share permissions and leave the Folder permissions as they are.
Stop the Full Text Index Service
Stop the Full Text Search Service
Open the Archive Manager Configuration Editor
Change the Full Text Index location from the local path to the UNC eg C:\Example\Index to \\quest1234\index
Start the Services