Hello, There is an odd problem during using ocserv: After build my VPS on ocserv, all my clients are connected very well like Windows client (Anyconnect), BlackBerry (Anyconnect), IOS(Anyconnect), Android(Openconnect), but only Android client (Anyconnect) is failed to connect. Android client error The VPN client agent SSL engine encountered an error . Server version: centos7 Linux kernel: Linux My 3.10.0-327.28.3.el7.x86_64 #1 SMP Thu Aug 18 19:05:49 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux Ocserv version: ocserv 0.11.8 Gnutls version: 3.3.24 Ocserv config: auth = "plain[/etc/ocserv/ocpasswd]" tcp-port = 443 udp-port = 443 run-as-user = ocserv run-as-group = ocserv socket-file = ocserv.sock chroot-dir = /var/lib/ocserv isolate-workers = true max-clients = 100 max-same-clients = 0 keepalive = 32400 dpd = 90 mobile-dpd = 1800 switch-to-tcp-timeout = 300 try-mtu-discovery = false server-cert = /etc/ssl/certs/server-cert.pem server-key = /etc/ssl/private/server-key.pem compression = true no-compress-limit = 256 tls-priorities = "NORMAL:%SERVER_PRECEDENCE:%COMPAT:-VERS-SSL3.0" auth-timeout = 240 min-reauth-time = 300 ban-reset-time = 300 cookie-timeout = 86400 persistent-cookies = true deny-roaming = false rekey-time = 172800 rekey-method = ssl use-utmp = true use-occtl = true pid-file = /var/run/ocserv.pid device = vpns predictable-ips = true ipv4-network = 10.12.0.0 ipv4-netmask = 255.255.255.0 dns = 8.8.8.8 dns = 4.2.2.1 ping-leases = false cisco-client-compat = true #dtls-psk = false dtls-legacy = true Hope you can offer solution soon, thank you.