I've been trying to troubleshoot a recurring problem with my VPN router dropping its OpenVPN client connection, then unable to resolve VPN host and reconnect.
My setup:
Asus AC66u router connected to ISP (no VPN client).
Asus N66u router connected to the AC66u, running an OpenVPN client to TorGuard.
Both routers are running: 3.0.0.4.374.43 Merlin fork.
Issue:
The N66u appears to lose OpenVPN connectivity at random intervals - as little as 15 minutes after a reboot, and sometimes it will be fine for several days. Once the client drops, it can no longer resolve the VPN host - only a VPN client stop/start, or reboot of the router will allow the N66u to connect again.
The master router shows no signs of internet drops, and doesn't have any disruption related to the times when the VPN router disconnects.
Log snippet when a drop occurs:
Jun 30 05:01:25 ntp: start NTP update
Jun 30 05:01:26 ntp: NTP update successful after 1 attempt(s)
Jun 30 05:24:14 openvpn[441]: [TG-OVPN-CA] Inactivity timeout (--ping-restart), restarting
Jun 30 05:24:14 openvpn[441]: SIGUSR1[soft,ping-restart] received, process restarting
Jun 30 05:24:14 openvpn[441]: Restart pause, 2 second(s)
Jun 30 05:24:16 openvpn[441]: WARNING: No server certificate verification method has been enabled. See http://openvpn.net/howto.html#mitm for more info.
Jun 30 05:24:16 openvpn[441]: NOTE: the current --script-security setting may allow this configuration to call user-defined scripts
Jun 30 05:24:16 openvpn[441]: Socket Buffers: R=[118784->118784] S=[118784->118784]
Jun 30 05:24:46 openvpn[441]: RESOLVE: Cannot resolve host address: chi.central.usa.torguardvpnaccess.com: Name or service not known
Jun 30 05:25:16 openvpn[441]: RESOLVE: Cannot resolve host address: chi.central.usa.torguardvpnaccess.com: Name or service not known
Any help appreciated! Trying to understand whether I have a VPN disconnect issue, or DNS confusion that resolves itself when the VPN is manually stopped/started.
OpenVPN client settings are attached.
My setup:
Asus AC66u router connected to ISP (no VPN client).
Asus N66u router connected to the AC66u, running an OpenVPN client to TorGuard.
Both routers are running: 3.0.0.4.374.43 Merlin fork.
Issue:
The N66u appears to lose OpenVPN connectivity at random intervals - as little as 15 minutes after a reboot, and sometimes it will be fine for several days. Once the client drops, it can no longer resolve the VPN host - only a VPN client stop/start, or reboot of the router will allow the N66u to connect again.
The master router shows no signs of internet drops, and doesn't have any disruption related to the times when the VPN router disconnects.
Log snippet when a drop occurs:
Jun 30 05:01:25 ntp: start NTP update
Jun 30 05:01:26 ntp: NTP update successful after 1 attempt(s)
Jun 30 05:24:14 openvpn[441]: [TG-OVPN-CA] Inactivity timeout (--ping-restart), restarting
Jun 30 05:24:14 openvpn[441]: SIGUSR1[soft,ping-restart] received, process restarting
Jun 30 05:24:14 openvpn[441]: Restart pause, 2 second(s)
Jun 30 05:24:16 openvpn[441]: WARNING: No server certificate verification method has been enabled. See http://openvpn.net/howto.html#mitm for more info.
Jun 30 05:24:16 openvpn[441]: NOTE: the current --script-security setting may allow this configuration to call user-defined scripts
Jun 30 05:24:16 openvpn[441]: Socket Buffers: R=[118784->118784] S=[118784->118784]
Jun 30 05:24:46 openvpn[441]: RESOLVE: Cannot resolve host address: chi.central.usa.torguardvpnaccess.com: Name or service not known
Jun 30 05:25:16 openvpn[441]: RESOLVE: Cannot resolve host address: chi.central.usa.torguardvpnaccess.com: Name or service not known
Any help appreciated! Trying to understand whether I have a VPN disconnect issue, or DNS confusion that resolves itself when the VPN is manually stopped/started.
OpenVPN client settings are attached.
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