I've never used 'the Cloud' so don't understand why pathing is referencing C: drive and User folders.
On a shared network file server I would use UNC pathing.
Is each user running their own copy of the frontend located on their local workstation?
Possibly modifying the table links with VBA will work for your situation. Here is my code:
Code:
Public Sub EditTableLinks()
'Use the variables provided to do the manipulations desired
Dim td As TableDef
Dim db As DAO.Database
Dim strOld As String
Dim strNew As String
'replace the following strings as needed
strOld = "old path"
strNew = "new path"
Set db = CurrentDb
For Each td In db.TableDefs
If InStr(td.Connect, strOld) > 0 Then
Debug.Print td.Name
Debug.Print "Old Link: " & td.Connect
td.Connect = Replace(td.Connect, strOld, strNew)
td.RefreshLink
Debug.Print "New Link: " & td.Connect
End If
Next td
db.TableDefs.Refresh
End Sub