Dear openconnect-devel team: I am running ocserv-3.3 in my ubuntu 13.04 x86(openvz vps). In my phone(lg f160l android 4.1.2) use cisco anyconnect ics+ client to connect to server. Very often when phone back form sleep ,VPN connection seem alive,but couldn't reach the VPN gateway,unless reconncet the VPN. ocserv log shows. ocserv[24557]: main: 60.166.0.0:43075 TLS session DB storing a810baeebbdebe6 2851189fc426db03b0047fb48ce1b510ba9b52c02b278dabb ocserv[24640]: worker: 60.166.0.0:43075 TLS handshake completed ocserv[24640]: worker: 60.166.0.0:43075 sent sid: sB7+o2UjgxV2Qz6l ocserv[24557]: main: 60.166.0.0:43075 main-misc.c:489: command socket closed ocserv[24557]: main: 60.166.0.0:43075 removing client '' with id '24640' ocserv[24557]: main: DTLS record version: 1.0 ocserv[24557]: main: DTLS hello version: 39.201 ocserv[24557]: main: unexpected DTLS content type: 23 ocserv[24557]: main: could not determine the owner of received UDP packet ocserv[24557]: main: DTLS record version: 1.0 ocserv[24557]: main: DTLS hello version: 95.250 ocserv[24557]: main: unexpected DTLS content type: 23 ocserv[24557]: main: could not determine the owner of received UDP packet ocserv[24557]: main: DTLS record version: 1.0 ocserv[24557]: main: DTLS hello version: 76.12 ocserv[24557]: main: unexpected DTLS content type: 23 ocserv[24557]: main: could not determine the owner of received UDP packet ocserv[24557]: main: DTLS record version: 1.0 ocserv[24557]: main: DTLS hello version: 74.179 ocserv[24557]: main: unexpected DTLS content type: 23 ocserv[24557]: main: could not determine the owner of received UDP packet ocserv[24557]: main: Performing maintenance ocserv[24557]: main: could not determine the owner of received UDP packet Any suggestion? Thanks.