The problem being \\computername is not accessible. and/or your home network gives error 'Access is Denied. Please contact your system administrator.'
You may get that error if your LSA\restrictanonymous regkey is set to hexadecimal '1', which would be found at
HKLM\SYSTEM\CurrentControlSet\Control\Lsa\restrictanonymous. I set that to evade the common LSA exploit, but it messed up my home network, so I got a firewall and set it back to 0, now everything's fine again, and working properly.
Еще тут пара солюшенов мелькало
http://www.winguides.com/forums/showfla ... sb=2&part=