UNC name resolution issue

Question

Have a win 2008 r2. after installing some patches the xp client machine can no longer access the file share. Win 7 machine was okay.

\\servername\    path not found
\\x.x.x.x\    path not found
\\servername.contoso.com\    path found
ping servername    okay
ping x.x.x.x    okay
ping servername.contoso.com    okay
netbios over tcp/ip is enabled
TCP/IP Helper Service is enabled
dcdiag & repadmin /replsum    okay

The DC is a PDC, RID, Infra master.

just no idea what when wrong after the server OS patching ...

score 0 · Answer 1 · answered Dec 05 '16 at 15:21

0

Try changing the value of
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\LanmanServer\DependOnService
from SamSS Srv2 to SamSS Srv
and reboot your server.

answered Dec 05 '16 at 15:21

Daniel

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the server in questions is already on SamSS Srv but still not working. Thanks – user11599 Dec 06 '16 at 14:43

score 0 · Accepted Answer · answered Dec 28 '16 at 16:40

https://support.microsoft.com/en-sg/kb/3161949

NETBIOS communication outside of the local subnet is hardened. Therefore, by default, some features that depend on NETBIOS (such as SMB over NETBIOS) will not work outside the local subnet.

SUBKEY: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\NetBT\Parameters
Value Name: AllowNBToInternet
Type: Dword
Value: 1

UNC name resolution issue

2 Answers2