I have no idea what all this means but here is my system log below. A couple of times this week, the router just loses all settings and I need to enter all my ppoe details again for it to connect to the internet.
Aug 1 00:00:24 pppd[294]: pppd 2.4.7 started by admin, uid 0
Aug 1 00:00:25 syslog: module ledtrig-usbdev not found in modules.dep
Aug 1 00:00:25 syslog: module leds-usb not found in modules.dep
Aug 1 00:00:25 kernel: SCSI subsystem initialized
Aug 1 00:00:27 kernel: ufsd: driver (8.6 U86_r187446_b122, LBD=ON, acl, ioctl, rwm, ws, sd) loaded at c027c000
Aug 1 00:00:27 kernel: NTFS (with native replay) support included
Aug 1 00:00:27 kernel: optimized: speed
Aug 1 00:00:27 kernel: Build_for__asus_n66u_2011-10-27_U86_r187446_b122
Aug 1 00:00:44 start_nat_rules: apply the nat_rules(/tmp/nat_rules__eth0)!
Aug 1 00:00:44 kernel: nf_conntrack_rtsp v0.6.21 loading
Aug 1 00:00:44 kernel: nf_nat_rtsp v0.6.21 loading
Aug 1 00:00:44 zcip client: configured 169.254.158.203
Aug 1 00:01:00 pppd[294]: Timeout waiting for PADO packets
Aug 1 00:01:19 rc_service: httpd 257:notify_rc start_autodet
Aug 1 00:01:28 rc_service: httpd 257:notify_rc start_autodet
Aug 1 00:01:43 rc_service: httpd 257:notify_rc start_autodet
Aug 1 00:01:45 rc_service: httpd 257:notify_rc start_autodet
Aug 1 00:01:53 rc_service: httpd 257:notify_rc restart_wan_if 0
Aug 1 00:01:53 pppd[294]: Unable to complete PPPoE Discovery
Aug 1 00:01:53 kernel: Attempt to kill tasklet from interrupt
Aug 1 00:01:55 pppd[475]: pppd 2.4.7 started by admin, uid 0
Aug 1 00:01:55 pppd[475]: Connected to 84:26:2b:a1:c5:b5 via interface eth0
Aug 1 00:01:55 pppd[475]: Connect: ppp0 <--> eth0
Aug 1 00:01:58 rc_service: httpd 257:notify_rc start_autodet
Aug 1 00:02:15 start_nat_rules: apply the nat_rules(/tmp/nat_rules__eth0)!
Aug 1 00:02:15 zcip client: configured 169.254.158.203
Sep 21 21:56:12 syslogd started: BusyBox v1.17.4
Sep 21 21:56:12 kernel: klogd started: BusyBox v1.17.4 (2015-09-05 12:31:49 CST)
Sep 21 21:56:12 ntp: start NTP update
Sep 21 21:56:12 start_nat_rules: apply the nat_rules(/tmp/nat_rules_ppp0_eth0)!
Sep 21 21:56:12 hour monitor: daemon is starting
Sep 21 21:56:30 WAN Connection: WAN was restored.