# Disable Turning Off the Network Adapter

If you are using a Cognex 8724e GigE Vision Frame Grabber, perform the following steps to prevent Windows from turning off the network adapters of the PC, and thereby ensure uninterrupted communication with the Cognex Security Dongle installed on the card.

1. Open the Windows Device Manager.

2. Expand the Network adapters node (A), and right-click on the network adapter you are using. Click the Properties option (B).

3. Click the Power Management tab of the dialog that opens, and uncheck the Allow the computer to turn off this device to save power option. Then, click OK to apply the change.