O cliente OpenVPN parou para funcionar no Windows 7

Question

Meu cliente openvpn parou para trabalhar no Windows 7 de 64 bits. Usuário informa que houve "tela azul da morte", em seguida, após a reinicialização Openvpn parou para trabalhar.

1. as chaves do cliente são válidas. Eu os copiei para outra máquina cliente e consegui me conectar à VPN
2. eu posso telnet servidor openvpn do cliente
3. Rota parece bem
4. O cliente pode se conectar ao servidor de acordo com os registros, mas acontece muito estranho durante a troca de chaves ...?
5. O dispositivo Windows TAP está instalado.

Como posso depurá-lo?

Aqui estão os registros do cliente:

Sun Nov 01 01:39:17 2015 us=29232 MANAGEMENT: >STATE:1446331157,WAIT,,,
Sun Nov 01 01:39:51 2015 us=45177 Connection reset, restarting [-1]
Sun Nov 01 01:39:51 2015 us=48177 TCP/UDP: Closing socket
Sun Nov 01 01:39:51 2015 us=48177 SIGUSR1[soft,connection-reset] received, process restarting
Sun Nov 01 01:39:51 2015 us=48177 MANAGEMENT: >STATE:1446331191,RECONNECTING,connection-reset,,
Sun Nov 01 01:39:51 2015 us=48177 Restart pause, 5 second(s)
Sun Nov 01 01:39:56 2015 us=48463 Re-using SSL/TLS context
Sun Nov 01 01:39:56 2015 us=48463 LZO compression initialized
Sun Nov 01 01:39:56 2015 us=48463 WARNING: normally if you use --mssfix and/or --fragment, you should also set --tun-mtu 1500 (currently it is 1400)
Sun Nov 01 01:39:56 2015 us=48463 Control Channel MTU parms [ L:1476 D:140 EF:40 EB:0 ET:0 EL:3 ]
Sun Nov 01 01:39:56 2015 us=48463 Socket Buffers: R=[8192->8192] S=[8192->8192]
Sun Nov 01 01:39:56 2015 us=48463 MANAGEMENT: >STATE:1446331196,RESOLVE,,,
Sun Nov 01 01:39:56 2015 us=51464 Data Channel MTU parms [ L:1476 D:1450 EF:44 EB:143 ET:32 EL:3 AF:3/1 ]
Sun Nov 01 01:39:56 2015 us=51464 Local Options String: 'V4,dev-type tap,link-mtu 1476,tun-mtu 1432,proto TCPv4_CLIENT,comp-lzo,cipher BF-CBC,auth SHA1,keysize 128,key-method 2,tls-client'
Sun Nov 01 01:39:56 2015 us=51464 Expected Remote Options String: 'V4,dev-type tap,link-mtu 1476,tun-mtu 1432,proto TCPv4_SERVER,comp-lzo,cipher BF-CBC,auth SHA1,keysize 128,key-method 2,tls-server'
Sun Nov 01 01:39:56 2015 us=52464 Local Options hash (VER=V4): 'ef060fcc'
Sun Nov 01 01:39:56 2015 us=52464 Expected Remote Options hash (VER=V4): '249a8e18'
Sun Nov 01 01:39:56 2015 us=52464 Attempting to establish TCP connection with [AF_INET]XXX.XXX.XXX.XXX:443 [nonblock]
Sun Nov 01 01:39:56 2015 us=52464 MANAGEMENT: >STATE:1446331196,TCP_CONNECT,,,
Sun Nov 01 01:39:57 2015 us=52521 TCP connection established with [AF_INET]XXX.XXX.XXX.XXX:443
Sun Nov 01 01:39:57 2015 us=52521 TCPv4_CLIENT link local: [undef]
Sun Nov 01 01:39:57 2015 us=52521 TCPv4_CLIENT link remote: [AF_INET]XXX.XXX.XXX.XXX:443
Sun Nov 01 01:39:57 2015 us=52521 MANAGEMENT: >STATE:1446331197,WAIT,,,

Aqui estão os registros do servidor:

Sun Nov  1 03:21:23 2015 us=68907 TCP/UDP: Closing socket
Sun Nov  1 03:21:39 2015 us=96170 MULTI: multi_create_instance called
Sun Nov  1 03:21:39 2015 us=96481 Re-using SSL/TLS context
Sun Nov  1 03:21:39 2015 us=96540 LZO compression initialized
Sun Nov  1 03:21:39 2015 us=96742 Control Channel MTU parms [ L:1576 D:140 EF:40 EB:0 ET:0 EL:0 ]
Sun Nov  1 03:21:39 2015 us=96814 Data Channel MTU parms [ L:1576 D:1450 EF:44 EB:135 ET:32 EL:0 AF:3/1 ]
Sun Nov  1 03:21:39 2015 us=96918 Local Options String: 'V4,dev-type tap,link-mtu 1576,tun-mtu 1532,proto TCPv4_SERVER,comp-lzo,cipher BF-CBC,auth SHA1,keysize 128,key-method 2,tls-server'
Sun Nov  1 03:21:39 2015 us=96946 Expected Remote Options String: 'V4,dev-type tap,link-mtu 1576,tun-mtu 1532,proto TCPv4_CLIENT,comp-lzo,cipher BF-CBC,auth SHA1,keysize 128,key-method 2,tls-client'
Sun Nov  1 03:21:39 2015 us=96996 Local Options hash (VER=V4): '3e6d1056'
Sun Nov  1 03:21:39 2015 us=97030 Expected Remote Options hash (VER=V4): '31fdf004'
Sun Nov  1 03:21:39 2015 us=97108 TCP connection established with [AF_INET]YYY.YYY.YYY.YYY:65204
Sun Nov  1 03:21:39 2015 us=97153 TCPv4_SERVER link local: [undef]
Sun Nov  1 03:21:39 2015 us=97182 TCPv4_SERVER link remote: [AF_INET]YYY.YYY.YYY.YYY:65204
Sun Nov  1 03:22:00 2015 us=905345 YYY.YYY.YYY.YYY:65191 TLS Error: TLS key negotiation failed to occur within 60 seconds (check your network connectivity)
Sun Nov  1 03:22:00 2015 us=905550 YYY.YYY.YYY.YYY:65191 TLS Error: TLS handshake failed
Sun Nov  1 03:22:00 2015 us=905719 YYY.YYY.YYY.YYY:65191 Fatal TLS error (check_tls_errors_co), restarting
Sun Nov  1 03:22:00 2015 us=905759 YYY.YYY.YYY.YYY:65191 SIGUSR1[soft,tls-error] received, client-instance restarting
Sun Nov  1 03:22:00 2015 us=905835 TCP/UDP: Closing socket