[steverobbo]

Heres the latest then.

Of my 3 DC's (for arguement sake DC1, DC2 and DC3). Registry setting as per below.

HKEY_LOCAL_MACHINES\System\CurrentControlSet\Contr ol\LSA\LMCompatibilityLevel - Set to 0 on DC1. No such value on DC2 and DC3.

HKEY_LOCAL_MACHINES\System\CurrentControlSet\Servi ces\LanManServer\Parameters\EnableSecuritySignatur e - Set to 0 on DC1 and DC2. No such value on DC3.

HKEY_LOCAL_MACHINES\System\CurrentControlSet\Servi ces\LanManServer\Parametes\RequireSecuritySignatur e - Set to 0 on DC1 and DC2. No such value on DC3.

As far as the workstations are concerned I had a look at 2, both XP Pro. Registry results as follows.

HKEY_LOCAL_MACHINES\System\CurrentControlSet\Contr ol\LSA\LMCompatibilityLevel - Set to 0 on both WS1 and WS2.

HKEY_LOCAL_MACHINES\System\CurrentControlSet\Servi ces\Rdr\Parameters\EnableSecuritySignature - There was no Rdr entry under services. Under Lanmanserver the value was 0 on both WS's. Under lanmanworkstation the value was 1 on both WS's.

HKEY_LOCAL_MACHINES\System\CurrentControlSet\Servi ces\Rdr\Paramete\RequireSecuritySignature - Again there was no Rdr entry under services. Under both Lanmanserver and Lanmanworkstation the value was set to 0 for both WS's.

Do I need to add in any of the missing keys and values? Again the only messages I see in thr Snap log are all SMB related. See below.

SMB : WORKSTATION1 not connected to domain controller.
SMB : Can't resolve master browser IP address for domain DOMAIN.

Is there any workaround I can put in place even if it involves duplicating user accounts?