OpenVPN remonte Access througth Dynamic IP

[koko_adams]

Hi

I have configure OpenVPN server througth a wifi box ( dynamic IP )

I have open 1194/udp port , but the error message is thé following :

TLS Error: TLS key negotiation failed to occur within 60 seconds (check your network connectivity)
TLS Error: TLS handshake failed
SIGUSR1[soft,tls-error] received, process restarting

The command : Telnet @public ip 1194 show the port is open

How i can resolv this