Please follow the instructions below to remove ESD-Guest from your Preferred Networks
Forget a network on your Mac
Choose Apple menu > System Preferences, then click Network.
Select Wi-Fi in the list on the left.
Click the Advanced button. (If Advanced is grayed out, click the small lock on the bottom left corner.
The Wi-Fi pane shows a Preferred Networks list. Select the Wi-Fi network that you want your Mac to forget.
Click the remove button (–) beneath the list. If you're asked to confirm, click Remove.
Click OK.
Click Apply.