Just ran into this exact problem. Unidentified networks are par défaut set to type of "Public". Ceci est awkward quand you want Windows Firewall to be active on Public networks mais pas Private ones -- et votre internal network is toujours "Unidentified".
Quel est an "Unidentified" network to Windows Server 2008?
The Network Lists service (netprofm) works avec le Network Location Awareness service (nlasvc) to identify networks et find le associated saved settings for le network, si any. The NLA service will use a Default Gateway ou SSID to identify a network, so if le NIC has ni a Default Gateway ou associated SSID, alors NLA will determine that le network is Unidentified.
Vous pouvez however changez le par défaut -- so that so-called "Unidentified" networks will be defaulted to something autre than Public:
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Open Administrative Tools -> Local Security Policy.
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Highlight le "Network List Manager Policies" item, alors double click le "Unidentified Networks" on le right panel.
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Définissez le "Location Type" to "Private" ou "Public".
Worked for me!