I have an enviroment with the following Servers and clients.
SBS 2003 as the domain controller
Windows 2008 std Sever 64bit application Server
Windows 2008 std Server 32bit for a specific POS application installed lately
Clients are windows XP for POS machines and Win7 for workstations.
What is happening is that the shared folders on Windows 2008 32bit server cannot be accessed by Windows 2003 and Windows XP clients.
It can though be accessed by the Windows 2008 server and windows 7 clients.
This usually happens once a day and when the network has no serious activity.
To resolve the issue temporarily, i have to restart the Windows Server 2008 32bit.