Then you need to look at the network settings on the TS like Client, Protocol, Binding and Provider Order, etc.

Here's a cheat-sheet on my TS that outlines the logon process.

After successfully negotiating the MSGINA, the logon script sequence is as follows:

The Domain logon script as governed by the User Environment Profile
The NetWare login script for the Organization FortFrances
The WTS logon script 'C:\WINNT\system32\usrlogon.cmd'
as governed by the registry key 'AppSetup'
in 'HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon'
All other scripts are called in turn from within usrlogon.cmd, Usrlogn1.cmd, Usrlogn2.cmd, and those in C:\WINNT\Application Compatibility Scripts\ or sub-folders beneath.

While it is possible to assign logon and/or logoff scripts from within Group Policies, non are assigned at present.
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