Microsoft Windows Vista "Unidentified Network" Issue

There is a bug in Vista that may show your internet connection as an "Unidentified Network". This is typically caused by Vista setting your MAC address to a default address of 00:00:00:00:00. This occurs normally because of a compatibility issue with the broadcast flag and your router not being able to decipher it. Edit the following Registry Key to correct the problem:

Type REGEDIT in the Start Search box

Press "OK" to approve this task

Once REGEDIT opens, migrate to the following registy entry

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\Interfaces\{GUID}

Find the Value name: DhcpConnForceBroadcastFlag
Verify the Value type: REG_DWORD
Change the Value data to: 0

Note: A data value of 0 disables this registry entry. You can use this registry entry to prevent Windows Vista from using the DHCP BROADCAST flag. After you set this registry entry, Windows Vista never uses the DHCP BROADCAST flag.

After making this edit close REGEDIT and restart your PC. You should no longer have the issue with your internet connection being identified as "Unidentified Network".