I'm currently experiencing a very annoying problem with my OpenVPN server.
Since two days clients get cannot connect anymore.
I have set the verbosity to 6 to try and find out more. Here is (part of) the log file:
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Thu Oct 29 10:54:38 2015 TCP connection established with [AF_INET]xxx.xxx.xxx.xxx:1723
Thu Oct 29 10:54:38 2015 TCPv4_CLIENT link local: [undef]
Thu Oct 29 10:54:38 2015 TCPv4_CLIENT link remote: [AF_INET]xxx.xxx.xxx.xxx:1723
Thu Oct 29 10:54:38 2015 MANAGEMENT: >STATE:1446112478,WAIT,,,
Thu Oct 29 10:54:38 2015 TCPv4_CLIENT WRITE [14] to [AF_INET]xxx.xxx.xxx.xx:1723: P_CONTROL_HARD_RESET_CLIENT_V2 kid=0 [ ] pid=0 DATA len=0
Thu Oct 29 10:54:40 2015 TCPv4_CLIENT WRITE [14] to [AF_INET]xxx.xxx.xxx.xxx:1723: P_CONTROL_HARD_RESET_CLIENT_V2 kid=0 [ ] pid=0 DATA len=0
Thu Oct 29 10:54:44 2015 TCPv4_CLIENT WRITE [14] to [AF_INET]xxx.xxx.xxx.xxx:1723: P_CONTROL_HARD_RESET_CLIENT_V2 kid=0 [ ] pid=0 DATA len=0
Thu Oct 29 10:54:52 2015 TCPv4_CLIENT WRITE [14] to [AF_INET]xxx.xxx.xxx.xxx:1723: P_CONTROL_HARD_RESET_CLIENT_V2 kid=0 [ ] pid=0 DATA len=0
Thu Oct 29 10:54:59 2015 read TCPv4_CLIENT: Connection timed out (WSAETIMEDOUT) (code=10060)
Thu Oct 29 10:54:59 2015 TCPv4_CLIENT READ [0] from [AF_INET]xxx.xxx.xxx.xxx:1723: DATA UNDEF len=-1
Thu Oct 29 10:54:59 2015 Connection reset, restarting [-1]
Thu Oct 29 10:54:59 2015 TCP/UDP: Closing socket
Thu Oct 29 10:54:59 2015 SIGUSR1[soft,connection-reset] received, process restarting
Thu Oct 29 10:54:59 2015 MANAGEMENT: >STATE:1446112499,RECONNECTING,connection-reset,,
Thu Oct 29 10:54:59 2015 Restart pause, 5 second(s)
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Thu Oct 29 10:32:25 2015 us=927154 TCP connection established with [AF_INET]xxx.xxx.xxx.xxx:62533
Thu Oct 29 10:32:25 2015 us=927179 TCPv4_SERVER link local: [undef]
Thu Oct 29 10:32:25 2015 us=927207 TCPv4_SERVER link remote: [AF_INET]xxx.xxx.xxx.xxx:62533
Thu Oct 29 10:32:31 2015 us=31500 xxx.xxx.xxx.xxx:62528 TLS Error: TLS key negotiation failed to occur within 60 seconds (check your network connectivity)
Thu Oct 29 10:32:31 2015 us=31610 xxx.xxx.xxx.xxx:62528 TLS Error: TLS handshake failed
Thu Oct 29 10:32:31 2015 us=31792 xxx.xxx.xxx.xxx:62528 Fatal TLS error (check_tls_errors_co), restarting
Thu Oct 29 10:32:31 2015 us=31822 xxx.xxx.xxx.xxx:62528 SIGUSR1[soft,tls-error] received, client-instance restarting
Thu Oct 29 10:32:31 2015 us=31887 TCP/UDP: Closing socket
Thu Oct 29 10:32:58 2015 us=45110 xxx.xxx.xxx.xxx:62531 TLS Error: TLS key negotiation failed to occur within 60 seconds (check your network connectivity)
Thu Oct 29 10:32:58 2015 us=45216 xxx.xxx.xxx.xxx:62531 TLS Error: TLS handshake failed
Thu Oct 29 10:32:58 2015 us=45319 xxx.xxx.xxx.xxx:62531 Fatal TLS error (check_tls_errors_co), restarting
Thu Oct 29 10:32:58 2015 us=45336 xxx.xxx.xxx.xxx:62531 SIGUSR1[soft,tls-error] received, client-instance restarting
Thu Oct 29 10:32:58 2015 us=45382 TCP/UDP: Closing socket
Thu Oct 29 10:33:25 2015 us=240516 xxx.xxx.xxx.xxx:62533 TLS Error: TLS key negotiation failed to occur within 60 seconds (check your network connectivity)
Thu Oct 29 10:33:25 2015 us=240628 xxx.xxx.xxx.xxx:62533 TLS Error: TLS handshake failed
Thu Oct 29 10:33:25 2015 us=240730 xxx.xxx.xxx.xxx:62533 Fatal TLS error (check_tls_errors_co), restarting
Thu Oct 29 10:33:25 2015 us=240755 xxx.xxx.xxx.xxx:62533 SIGUSR1[soft,tls-error] received, client-instance restarting
Thu Oct 29 10:33:25 2015 us=240811 TCP/UDP: Closing socket
The server is running Debian 8, clients are Windows.
Any help would be greatly appreciated!