Samsung SM-G860PZBASPR - Manual (Page 100)

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Disconnect from a VPN
The following describes how to disconnect from a VPN connection.
1. Touch and hold the title bar, and then drag down to open the Notification panel.
2. Tap the VPN connection to return to the VPN settings screen, and then tap the VPN connection
to disconnect from it.
When your phone has disconnected from the VPN, the VPN disconnected icon displays in the notification
area of the title bar.