Windows 2003 R2 DC cannot connect to Windows 7 File Shares
- All,
I have a Windows 2003 R2 DC, a Windows 7 computer and a Windows XP computer. All computers are joined to my domain. Until Windows 7 came along I had no networking problems. Now the Windows 2003 R2 DC is not able to navigate the file shares on the Windows 7 computer. All computers have static IPs and are ping-able from the DC. I can even do a 'Net Use' command against the Windows 7 computer from my DC and see all the shared folders.
Whenever I try to connect (using \\NETBIOS or IP) I get an error saying the computer is not accessible or I may not have permission to this network resource.
I have the firewall turned off on Windows 7.
From my XP machine I can connect to Windows 7 file shares no problem. It is just from the DC that I can't connect. This wouldn't be that big of an issue but I have an SFTP server I run on the DC which connects to file shares on the Windows 7 computer. This functionality no longer works since migrating from Vista (I did a clean install of Windows 7).
What gives? Any ideas?
Answers
Please open gpedit.msc, locate to the branch Computer Configuration\Windows Settings\Security Settings\Local Policies\Security Options\. Then make the change on the policy Network security: LAN Manager authentication level. Change to “Send LM & NTLM - use NTLMv2 session security if negotiated”. Then, see if the issue still occurs. Please try to access with both computer name and IP address from Windows Explorer.
If the issue is not resolved, please let us know which user did you log on to access the Windows 7 computer. Also, please let us know the exact error of the error message.
Arthur Xie - MSFT- Marked As Answer byChristopher Exline Sunday, November 15, 2009 12:58 AM
All Replies
Did you disable the firewall in Windows Server 2003? It may block the returned authentication data packs. How does it work if you disable the SFTP server on the Windows Server 2003 computer?
How does it work when you access the shares on the Windows XP computer from Windows Server 2003?
Arthur Xie - MSFT- Sice the Windows 2003 Server is a DC it does not have Windows Firewall. With the SFTP server off it acts the same way.
Shares on the XP computer are seen fine from Windows Server 2003. Please open gpedit.msc, locate to the branch Computer Configuration\Windows Settings\Security Settings\Local Policies\Security Options\. Then make the change on the policy Network security: LAN Manager authentication level. Change to “Send LM & NTLM - use NTLMv2 session security if negotiated”. Then, see if the issue still occurs. Please try to access with both computer name and IP address from Windows Explorer.
If the issue is not resolved, please let us know which user did you log on to access the Windows 7 computer. Also, please let us know the exact error of the error message.
Arthur Xie - MSFT- Marked As Answer byChristopher Exline Sunday, November 15, 2009 12:58 AM
- That worked. Thank you very much.
