This sounds like an NTFS permissions issue.
In Home, or Pro in Simple sharing mode, once the
network login is complete all access to the filesystem
is done as Guest (does not matter what account was
used for the network access authentication).
If Guest, or one of the groups in which it is a member,
has not grant in the NTFS settings of an area, then there
will be no allowed remote access.
To conveniently view the permissions in Home edition,
boot into safe mode and use the Security tab in the properties
of the filesystem objects.
Microsoft MVP (Windows Server System: Security)
MCSE (W2k3,W2k,Nt4) MCDBA