Windows XP and Server 2012 R2

Question

I have a new 2012 R2 Domain Controller and Exchange 2013 server running on Server 2012 R2. I have a few Windows XP clients that for some reason as of Monday cannot browse or access the file shares on the Domain Controller. However they can still access the
shares on the Exchange server. SMBv1 appears to be enabled on the Domain Controller and the Windows Firewall is off so I do not know what the issue is. DNS is working and I can ping the server from the client without any issues. The Windows Vista/7 workstations
can access the server without any issues.
Vincent Sprague

Answer 1

Hi,
What's the error message when failing to access the shared folders on DC?
Please test to:
1. logon same account in Windows XP and Windows 7 to see if the issue related to account.
2. Logon different accounts (one of them should able to access the shares on another computer) in Windows XP to see if it related to device.  
Meanwhile have a try to disable SMBv2 on your DC to see if it is SMB related issue. 
To disable SMB2 Server functionality set the follwing registry key: 
HKLM\System\CurrentControlSet\Services\LanmanServer\Parameters 
REG_DWORD Smb2 
Value: 0 = disabled 
Value: 1= enabled
Check if issue still exists after diable SMB2. You can enable it after testing. 
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