In Windows® 7, to enable support for Wake on Wireless LAN (WoWLAN) Group Temporal Key (GTK) Rekey, and Extensible Authentication Protocol (EAP) power-management scenarios, you must modify a registry key. GTK is used to encrypt and decrypt network traffic. EAP is an authentication framework that can be used over wired and wireless networks.
GTK Rekey and EAP wakeup are disabled by default, because not all devices support these options. A computer that is currently sleeping will not wake up on GTK or EAP actions, even if the network adapter supports them.
To enable WoWLAN support for GTK and EAP scenarios
To enable WoWLAN support for GTK and EAP scenarios, create or modify the following registry key:
- Key Name: EnableWoWLAN
- Type: DWORD
- Path:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\NativeWifiP\Parameters
- Value: 1
In addition to modifying this registry key, you must also configure the network device in the Device Manager.
- Open Device Manager.
- Right-click the network card you want to configure and select
Device Properties.
- In the Power Management tab, select the Allow this
device to wake up the computer check box.
After configuring this registry key, the computer will respond to requests on GTK rekeying and to an EAP request-identity packet.