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Entry type: FAQ Entry ID: 23909405, Entry date: 05/06/2008

How can you access a Microsoft Windows 2003 server with a panel / PC?

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Security settings
In order to be able to access a Microsoft Windows 2003 server with a panel or PC you must disable the following security settings on the Microsoft Windows 2003 server.

Under "Start > Programs > Administrative Tools > Security Policy for Domain Controller > Security Settings > Local Policies > Security Options" you locate the security settings. 

The settings described are to be made only

  • If you are using a Microsoft Windows 2003 server with Active Directory.
  • If the Windows CE 3.0 operating system is installed on the operator panel.
    Operator panels with the Windows CE 5.0 operating system are not affected
    (e.g. operator panels MP 277 / Mobile Panel 277 and higher). You can check which operating system is being used on the operator panel in the Control Panel under "System > General".

Disabling security settings:

  • Microsoft network (server): Digitally sign communications (always).
  • Microsoft network (server): Digitally sign communications (if client agrees).
  • Network security: "LAN Manager authentication level" change to "Send LM & NTLM responses".

After you have made the settings you must reboot the computer. This makes the changes made effective.

The changes made lower the security level of the network communications. Please check beforehand with your network administrator whether you are permitted to make these changes.

How to incorporate a panel in a local network is described in Entry ID: 13336639 .

Panel, Network, Server settings

Security information
In order to protect technical infrastructures, systems, machines and networks against cyber threats, it is necessary to implement – and continuously maintain – a holistic, state-of-the-art IT security concept. Siemens’ products and solutions constitute one element of such a concept. For more information about cyber security, please visit
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