Internet losing connection

[iamSteve]

I have an RT-N66U running Merlin 380.65_4 (was 380.65_2) when I had this issue over the last few days.

I find that I have a 'connection' to the internet but I was unable to access any websites. This has happened twice recently once at about 9.30 this morning, I have attached a log that may help find the issue?

Apr  7 23:53:36 miniupnpd[15924]: remove port mapping 5353 UDP because it has expired
Apr  7 23:53:36 miniupnpd[15924]: remove port mapping 4500 UDP because it has expired
Apr  8 01:11:44 openvpn[16044]: [146b3eafec5a1f9e93d694cd7c156022] Inactivity timeout (--ping-restart), restarting
Apr  8 01:11:44 openvpn[16044]: SIGUSR1[soft,ping-restart] received, process restarting
Apr  8 01:11:49 openvpn[16044]: NOTE: the current --script-security setting may allow this configuration to call user-defined scripts
Apr  8 01:11:49 openvpn[16044]: TCP/UDP: Preserving recently used remote address: [AF_INET]104.238.169.89:1198
Apr  8 01:11:49 openvpn[16044]: UDP link local: (not bound)
Apr  8 01:11:49 openvpn[16044]: UDP link remote: [AF_INET]104.238.169.89:1198
Apr  8 01:11:50 openvpn[16044]: [146b3eafec5a1f9e93d694cd7c156022] Peer Connection Initiated with [AF_INET]104.238.169.89:1198
Apr  8 01:11:51 openvpn[16044]: Preserving previous TUN/TAP instance: tun11
Apr  8 01:11:51 openvpn[16044]: Initialization Sequence Completed
Apr  8 09:13:43 openvpn[16044]: [146b3eafec5a1f9e93d694cd7c156022] Inactivity timeout (--ping-restart), restarting
Apr  8 09:13:43 openvpn[16044]: SIGUSR1[soft,ping-restart] received, process restarting
Apr  8 09:13:48 openvpn[16044]: NOTE: the current --script-security setting may allow this configuration to call user-defined scripts
Apr  8 09:13:48 openvpn[16044]: TCP/UDP: Preserving recently used remote address: [AF_INET]104.238.169.89:1198
Apr  8 09:13:48 openvpn[16044]: UDP link local: (not bound)
Apr  8 09:13:48 openvpn[16044]: UDP link remote: [AF_INET]104.238.169.89:1198
Apr  8 09:13:49 openvpn[16044]: [146b3eafec5a1f9e93d694cd7c156022] Peer Connection Initiated with [AF_INET]104.238.169.89:1198
Apr  8 09:13:50 openvpn[16044]: Preserving previous TUN/TAP instance: tun11
Apr  8 09:13:50 openvpn[16044]: Initialization Sequence Completed
Apr  8 09:40:17 openvpn[16044]: [146b3eafec5a1f9e93d694cd7c156022] Inactivity timeout (--ping-restart), restarting
Apr  8 09:40:17 openvpn[16044]: SIGUSR1[soft,ping-restart] received, process restarting
Apr  8 09:40:22 openvpn[16056]: [491f8d84b99bf0f979c0ca728125c629] Inactivity timeout (--ping-restart), restarting
Apr  8 09:40:22 openvpn[16056]: SIGUSR1[soft,ping-restart] received, process restarting
Apr  8 09:40:22 openvpn[16044]: NOTE: the current --script-security setting may allow this configuration to call user-defined scripts
Apr  8 09:40:22 openvpn[16044]: TCP/UDP: Preserving recently used remote address: [AF_INET]104.238.169.89:1198
Apr  8 09:40:22 openvpn[16044]: UDP link local: (not bound)
Apr  8 09:40:22 openvpn[16044]: UDP link remote: [AF_INET]104.238.169.89:1198
Apr  8 09:40:23 openvpn[16044]: [146b3eafec5a1f9e93d694cd7c156022] Peer Connection Initiated with [AF_INET]104.238.169.89:1198
Apr  8 09:40:25 openvpn[16044]: Preserving previous TUN/TAP instance: tun11
Apr  8 09:40:25 openvpn[16044]: Initialization Sequence Completed
Apr  8 09:40:27 openvpn[16056]: NOTE: the current --script-security setting may allow this configuration to call user-defined scripts
Apr  8 09:40:27 openvpn[16056]: TCP/UDP: Preserving recently used remote address: [AF_INET]31.24.226.202:1198
Apr  8 09:40:27 openvpn[16056]: UDP link local: (not bound)
Apr  8 09:40:27 openvpn[16056]: UDP link remote: [AF_INET]31.24.226.202:1198
Apr  8 09:40:28 openvpn[16056]: [491f8d84b99bf0f979c0ca728125c629] Peer Connection Initiated with [AF_INET]31.24.226.202:1198
Apr  8 09:40:34 openvpn[16056]: Preserving previous TUN/TAP instance: tun12
Apr  8 09:40:34 openvpn[16056]: Initialization Sequence Completed
Apr  8 12:55:45 miniupnpd[15924]: remove port mapping 5353 UDP because it has expired
Apr  8 12:55:45 miniupnpd[15924]: remove port mapping 4500 UDP because it has expired

It looks like the issue was something to do with OpenVPN, however I do not fully understand the log, hence my reason for asking for help.

One other thing I have had an issue with for a few months is a full NVRAM warning, today this was 63145 / 65536 bytes, so I backed up the router, used PUTTY to connect and ran the command "mtd-erase -d nvram" power cycled then restored the backup and now the current status is 55847 / 65536 bytes and I have no warning. Just wondering if this being full could have contributed to the problem.