Hi We have recently installed windows 7 at work. We use 3 mapped drives (P,Z andT). Sometimes when turning the pc on in the morning the computer will not reconnect to the drives automaticley, Which is a pain. My question is, is there a way to stop this, can you make them auto reconnect on start up. Thanks

Hello chrispch, According to the research, the mapped drive lost issue may be caused by the several possible reasons: Possible reason1. The problematic client doesn't reconnect to the target share at logon. Please follow the steps to re-configure the mapped driver on the client and then check if the issue will re-occur. Steps: a. Open "My Computer" b. Click on "Tools" and then select "Map Network Driver" c. input the \\ipaddressofserver\sharename to give the path of the share d. Check "Reconnect at logon" e. Drive gets mapped f. Double click on the drive to check. Possible Reason 2. Antivirus software or Windows Firewall may block the SMB protocol on clients. Please check if there is any Antivirus software and the Windows Firewall is enabled on the problematic client. If so, please disable them to check if the issue can be resolved. Possible Reason3. Fast Logon Optimization is enabled on the clients. The fast logon feature may affect the display and drive letter assignment of a mapped network drive. As a result, the drive may have been mapped; however, the user on client cannot see it in Windows Explorer. He may recognize it as a failed network drive mapping. This is the reason why we usually suggest you to disable fast logon on the clients via a GPO, and please check if the mapped network drive will be occur under this circumstance. Please also configure the following group policy setting to disable Fast Logon Optimization to see if the issue still exists on the problematic clients. Computer Configuration\Administrative Templates\System\Logon\Always wait for the network at computer startup and logon When this policy is enabled, a Windows XP client behaves in the same manner as a Windows 2000 client at both system startup and at user logon. Please note: As this is a computer configuration, please run "Gpupdate /force" and then reboot the problematic clients to make it take into effect. For more information about Fast Logon Optimization feature, please check the following KB article. 305293 Description of the Windows XP Professional Fast Logon Optimization feature http://support.microsoft.com/?id=305293 831998 Mapped network drive shows no drive letter or will not allow you to create new long-named files or folders http://support.microsoft.com/kb/831998 297684 Mapped Drive Connection to Network Share May Be Lost http://support.microsoft.com/kb/297684 If the issue still exists on the problematic clients, please also try adding the following registry subkey on the problematic client to check it works. Steps: a. Click Start, click Run, type REGEDIT, and then click OK. b. Locate and click the following registry subkey: HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\NetCache c. Click Edit, point to New, and then click DWORD Value. d. Type SilentForcedAutoReconnect , and then press ENTER to name the value. e. Double-click SilentForcedAutoReconnect . f. In the Value data box, type 1, and then click OK. Please feel free to let me know if you have any concen. Hope the information can be helpful for you.Thanks and Regards Scorpio_Milo MCTS: Windows Vista | Exchange Server 2007 MCITP: Enterprise Support Technician MCITP: Server & Enterprise Administrator Microsoft Infrastructure Consultant Enterprise Service: Solution Architect Microsoft Storage Team - File Cabinet Blog My Blog

Hi, Addition to Scorpio, you could reset the mapped drive with the following command in an elevated command windows. net use Z: \\server\folder /persistent:yes For more information, you can refer to the following article. http://technet.microsoft.com/zh-cn/library/bb490717(en-us).aspx Best Regards, NikiPlease remember to click "Mark as Answer" on the post that helps you, and to click "Unmark as Answer" if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.