我使用 ASUS RT-AC68U 設定openVPN 但始終無法連上

因為iphone 10開始 沒有了pptp 我嘗試設定openvpn 但始終連不上去。

2016-10-24 14:54:21 ----- OpenVPN Start -----
OpenVPN core 3.0.11 ios arm64 64-bit built on Apr 15 2016 14:13:50
2016-10-24 14:54:21 Frame=512/2048/512 mssfix-ctrl=1250
2016-10-24 14:54:21 UNUSED OPTIONS
12 [resolv-retry] [infinite]
13 [nobind]

2016-10-24 14:54:21 EVENT: RESOLVE
2016-10-24 14:54:21 Contacting 118.168.15.71:1194 via UDP
2016-10-24 14:54:21 EVENT: WAIT
2016-10-24 14:54:21 SetTunnelSocket returned 1
2016-10-24 14:54:21 Connecting to [我的ddns]:1194 (118.168.15.71) via UDPv4
2016-10-24 14:54:22 NET WiFi:ReachableViaWiFi/-R t-----d
2016-10-24 14:54:22 NET Internet:ReachableViaWiFi/-R t------
2016-10-24 14:54:31 Server poll timeout, trying next remote entry...
2016-10-24 14:54:31 EVENT: RECONNECTING
2016-10-24 14:54:31 EVENT: RESOLVE
2016-10-24 14:54:31 Contacting 118.168.15.71:1194 via UDP
2016-10-24 14:54:31 EVENT: WAIT
2016-10-24 14:54:31 SetTunnelSocket returned 1
2016-10-24 14:54:31 Connecting to [我的ddns]:1194 (118.168.15.71) via UDPv4
2016-10-24 14:54:41 Server poll timeout, trying next remote entry...
嘗試連線許多次
.
.
.
2016-10-24 14:55:11 EVENT: RECONNECTING
2016-10-24 14:55:11 EVENT: RESOLVE
2016-10-24 14:55:11 Contacting 118.168.15.71:1194 via UDP
2016-10-24 14:55:11 EVENT: WAIT
2016-10-24 14:55:11 SetTunnelSocket returned 1
2016-10-24 14:55:11 Connecting to [我的ddns]:1194 (118.168.15.71) via UDPv4
2016-10-24 14:55:21 EVENT: CONNECTION_TIMEOUT [ERR]
2016-10-24 14:55:21 EVENT: DISCONNECTED
2016-10-24 14:55:21 Raw stats on disconnect:
BYTES_OUT : 420
PACKETS_OUT : 30
CONNECTION_TIMEOUT : 1
N_RECONNECT : 5
2016-10-24 14:55:21 Performance stats on disconnect:
CPU usage (microseconds): 33728
Network bytes per CPU second: 12452
Tunnel bytes per CPU second: 0
2016-10-24 14:55:21 EVENT: DISCONNECT_PENDING
2016-10-24 14:55:21 ----- OpenVPN Stop -----

這是log
請問可能是甚麼錯誤導致我iphone 連不上去....麻煩各位了謝謝....