Please export this Registry key from your OIL server and post it here (at least some of it)

HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\lanmanserver\Shares

Make sure you point the users home folder in User Manager to their share i.e.

MYUSER1 = \\OIL\HOME\SHARED\myuser1$

Then share out \\OIL\HOME\SHARED\MYUSER1 as myuser1$

Give this a try and let us know.