sitesme Hi I am using the iOS 12 (public beta) and OpenVPN disconnects the VPN connection as soon as I leave OpenVPN app on my iPhone.
ordex It's a iOS bug. The issue has been reported to Apple and everybody is waiting for a fix. However, in general, please read this: https://docs.openvpn.net/connecting/connecting-to-access-server-with-apple-ios/faq-regarding-openvpn-connect-ios/#I_am_using_a_developer_preview_or_beta_version_of_the_iOS_platform_and_I_have_found_a_bug_in_OpenVPN_Connect