AWS LightSail OpenVPN + ASUS RT-3200 – TLS Error: Key negotiation failed
Using https://github.com/angristan/openvpn-install i have installed openvpn on AWS Lightsail Instance (Ubuntu 18.04 LTS). My server config file is as follows:
port 33434 proto udp dev tun user nobody group nogroup persist-key persist-tun keepalive 10 120 topology subnet server 10.8.0.0 255.255.255.0 ifconfig-pool-persist ipp.txt push "dhcp-option DNS 126.96.36.199" push "dhcp-option DNS 188.8.131.52" push "redirect-gateway def1 bypass-dhcp" dh dh.pem tls-auth tls-auth.key 0 crl-verify crl.pem ca ca.crt cert server_VYtknmf1PC80WpTG.crt key server_VYtknmf1PC80WpTG.key auth SHA512 cipher AES-256-CBC ncp-ciphers AES-256-CBC tls-server client-config-dir /etc/openvpn/ccd status /var/log/openvpn/status.log verb 3
And my client.ovpn is as follows:
client proto udp explicit-exit-notify remote 184.108.40.206 33434 dev tun resolv-retry infinite nobind persist-key persist-tun remote-cert-tls server verify-x509-name server_VYtknmf1PC80WpTG name auth SHA512 auth-nocache cipher AES-256-CBC tls-client setenv opt block-outside-dns # Prevent Windows 10 DNS leak verb 3
I have added port ‘33434’ UDP in Firewall rule of AWS instance.
I added a new profile in VPN Client section of the asus router and uploaded the client.ovpn file. And clicked activate and get follow message in the log.
May 15 22:29:43 vpnclient1: NOTE: the current --script-security setting may allow this configuration to call user-defined scripts May 15 22:29:43 vpnclient1: Socket Buffers: R=[122880->122880] S=[122880->122880] May 15 22:29:43 vpnclient1: UDPv4 link local: [undef] May 15 22:29:43 vpnclient1: UDPv4 link remote: [AF_INET]220.127.116.11:33434 May 15 22:29:43 vpnclient1: TLS: Initial packet from [AF_INET]18.104.22.168:33434, sid=61d9df2d 1f97bdd0 May 15 22:30:02 rc_service: service 17718:notify_rc restart_letsencrypt May 15 22:30:43 vpnclient1: TLS Error: TLS key negotiation failed to occur within 60 seconds (check your network connectivity) May 15 22:30:43 vpnclient1: TLS Error: TLS handshake failed May 15 22:30:43 vpnclient1: SIGUSR1[soft,tls-error] received, process restarting May 15 22:30:43 vpnclient1: Restart pause, 2 second(s)
Please suggest how to fix the issue. Thank you.
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Author: Saad Bashir