I have an issue on a small workgroup network, about 20 PCs, some with Vista and some with XP. We use a VistaPC with Vista home edition as the storage computer for all customer files. The customer folder needs to be accessed by the computers in the company. The problem is that intermittently the XP PC's lose their permissions to access theshared folders on the VistaPC. I am fairly newto network administration so any help is appreciated.I have checked to make sure the folders are shared and that there are restrictions to the folders.The Vista PC's have no problem and can still access the folders on themain Vista PC.All the computers are connected by a small Linksys wireless router with 4 ports and a add on Linksys switch to expand the number of available ports. Everthing is basically setup like a home network.

Hi, Thank you for posting. Firstly, may I know if all the Windows XP computers fail to access the Windows Vista share folders? Based on my research, I will suggest the following. Please try the following suggestions: 1. Please check if your firewall has been configured to allow file sharing on both the shared Windows Vista computer and the Windows XP computers. Please also disable the firewall to see how it works. 2. Please disable the share and re-configure the sharing with the following documents: File and Printer Sharing in Windows Vista http://technet.microsoft.com/en-us/library/bb727037.aspx Enable file and printer sharing http://windowshelp.microsoft.com/Windows/en-US/Help/e2e03106-2546-4085-bd07-6c3ac95003111033.mspx Please double check both Sharing and Security tab of your share folders properties, and make sure that you have assigned the Full-Control permissions to Everyone 3. Please perform a Clean Boot on the shared Windows Vista computer to check the issue. Clean boot ================= 1) Click the Start Button type "msconfig" (without quotation marks) in the Search box, and then press Enter. Note: If prompted, please click Continue on the User Account Control (UAC) window. 2) Click the "Services" tab, check the "Hide All Microsoft Services" box and click "Disable All" (if it is not gray). 3) Click the "Startup" tab, click "Disable All" and click "OK". Then, restart the computer. When the "System Configuration Utility" window appears, please check the "Don't show this message or launch the System Configuration Utility when Windows starts" box and click OK. NOTE: we can go back to normal boot by running msconfig again and checking on Normal Startup in the General tab. In the Clean Boot Environment, the third party services and applications are disabled, please check if the issue reoccurs at this time. If the problem does not occur, it indicates that the problem is related to one application or service we have disabled. You may use the MSCONFIG tool again to re-enable the disabled item one by one to find out the culprit. Meanwhile, just for tests, please try to access the share with both \\computer name\folder and XXX.XXX.XXX.XXX\folder to see if they works. Thanks.Nicholas Li - MSFT