Client 2.1.3
Server 2.4.6

Client logs:

Mar  6 19:33:48 client2 ovpn-client[3616]: UDPv4 link local: [undef]
Mar  6 19:33:48 client2 ovpn-client[3616]: UDPv4 link remote: 192.168.22.210:1194
Mar  6 19:33:48 client2 ovpn-client[3616]: TLS: Initial packet from 192.168.22.210:1194, sid=beed4251 c7636583
Mar  6 19:33:48 client2 ovpn-client[3616]: TLS_ERROR: BIO read tls_read_plaintext error: error:14092073:SSL routines:SSL3_GET_SERVER_HELLO:bad packet length
Mar  6 19:33:48 client2 ovpn-client[3616]: TLS Error: TLS object -> incoming plaintext read error
Mar  6 19:33:48 client2 ovpn-client[3616]: TLS Error: TLS handshake failed
Mar  6 19:33:48 client2 ovpn-client[3616]: TCP/UDP: Closing socket
Mar  6 19:33:48 client2 ovpn-client[3616]: SIGUSR1[soft,tls-error] received, process restarting