I woke up this morning and checked the logs on my router (DIR-655) and I first noticed that the connection up time was only 6 hours. I then checked the log and I found several pages containing this log entry
"Lease of 192.168.100.2 obtained, lease time 20"
I then got a log entry " received signal 15, good-bye" and from there I got a lot of log entries that make me think that the router may have rebooted (although I usually get 13 pages of logs when I reboot the router.)
The two possibilities that I can think of is either that my router was glitched or that my ISP's dhcp server was giving out bad leases.
below is the downloaded log file:
Nov 3 08:30:22 info UDHCPD Inform: add_lease 192.168.18.100
Nov 3 08:18:49 info UDHCPD Inform: add_lease 192.168.18.100
Nov 3 08:17:46 info UDHCPD Inform: add_lease 192.168.18.100
Nov 3 02:20:32 info NOIP2: Update DDNS Success
Nov 3 02:20:20 info [924628.300000] module arch cleanup nf_conntrack_ftp: OCM instruction memory free of 0 @00000000
Nov 3 02:20:20 info [924628.160000] module arch cleanup nf_nat_ftp: OCM instruction memory free of 0 @00000000
Nov 3 02:20:15 info [924623.000000] module arch cleanup nf_conntrack_ftp: OCM instruction memory free of 0 @00000000
Nov 3 02:20:15 info [924622.850000] module arch cleanup nf_nat_ftp: OCM instruction memory free of 0 @00000000
Nov 3 02:20:13 info using nameserver 204.194.232.200#53
Nov 3 02:20:13 info using nameserver 204.194.234.200#53
Nov 3 02:20:13 info [924620.770000] usbcore: registered new interface driver sxuptp_driver
Nov 3 02:20:11 info read /var/tmp/hosts - 1 addresses
Nov 3 02:20:11 info read /etc/hosts - 2 addresses
Nov 3 02:20:11 info using nameserver 204.194.232.200#53
Nov 3 02:20:11 info using nameserver 204.194.234.200#53
Nov 3 02:20:11 info reading /etc/resolv.conf
Nov 3 02:20:11 info compile time options: IPv6 GNU-getopt no-MMU ISC-leasefile no-DOCTOR no-NOWILD no-DBus no-I18N TFTP
Nov 3 02:20:11 info started, version 2.45 cachesize 150
Nov 3 02:20:11 notice HTTP listening on port 65535
Nov 3 02:20:08 info [924616.270000] module arch cleanup sxuptp: OCM instruction memory free of 0 @00000000
Nov 3 02:20:08 info [924616.200000] module arch cleanup sxuptp_driver: OCM instruction memory free of 0 @00000000
Nov 3 02:20:08 info [924616.200000] usbcore: deregistering interface driver sxuptp_driver
Nov 3 02:20:08 info [924616.140000] module arch cleanup jcp: OCM instruction memory free of 0 @00000000
Nov 3 02:20:08 info [924616.050000] module arch cleanup jcp_cmd: OCM instruction memory free of 0 @00000000
Nov 3 02:20:08 info [924615.860000] flags=0
Nov 3 02:20:08 info [924615.860000] ioctl eth0, 35312
Nov 3 02:20:07 info exiting on receipt of SIGTERM
Nov 3 02:20:07 notice received signal 15, good-bye
Nov 3 02:20:06 info Lease of 174.106.163.128 obtained, lease time 43200
Nov 3 02:19:45 info Lease of 192.168.100.2 obtained, lease time 20
Nov 3 02:19:35 info Lease of 192.168.100.2 obtained, lease time 20
Nov 3 02:19:26 info Lease of 192.168.100.2 obtained, lease time 20
Nov 3 02:19:16 info Lease of 192.168.100.2 obtained, lease time 20
Nov 3 02:19:06 info Lease of 192.168.100.2 obtained, lease time 20
Nov 3 02:18:55 info Lease of 192.168.100.2 obtained, lease time 20
Nov 3 02:18:45 info Lease of 192.168.100.2 obtained, lease time 20
Nov 3 02:18:35 info Lease of 192.168.100.2 obtained, lease time 20
Nov 3 02:18:26 info Lease of 192.168.100.2 obtained, lease time 20
Nov 3 02:18:16 info Lease of 192.168.100.2 obtained, lease time 20
Nov 3 02:18:06 info Lease of 192.168.100.2 obtained, lease time 20
Nov 3 02:17:55 info Lease of 192.168.100.2 obtained, lease time 20
Nov 3 02:17:45 info Lease of 192.168.100.2 obtained, lease time 20
Nov 3 02:17:35 info Lease of 192.168.100.2 obtained, lease time 20
Nov 3 02:17:25 info Lease of 192.168.100.2 obtained, lease time 20
Nov 3 02:17:15 info Lease of 192.168.100.2 obtained, lease time 20
Nov 3 02:17:05 info Lease of 192.168.100.2 obtained, lease time 20
Nov 3 02:16:54 info Lease of 192.168.100.2 obtained, lease time 20
Nov 3 02:16:44 info Lease of 192.168.100.2 obtained, lease time 20
Nov 3 02:16:34 info Lease of 192.168.100.2 obtained, lease time 20
Nov 3 02:16:24 info Lease of 192.168.100.2 obtained, lease time 20
Nov 3 02:16:15 info Lease of 192.168.100.2 obtained, lease time 20
Nov 3 02:16:05 info Lease of 192.168.100.2 obtained, lease time 20
Nov 3 02:15:54 info Lease of 192.168.100.2 obtained, lease time 20
Nov 3 02:15:44 info Lease of 192.168.100.2 obtained, lease time 20
Nov 3 02:15:34 info Lease of 192.168.100.2 obtained, lease time 20
Nov 3 02:15:24 info Lease of 192.168.100.2 obtained, lease time 20
Nov 3 02:15:15 info Lease of 192.168.100.2 obtained, lease time 20
Nov 3 02:15:05 info Lease of 192.168.100.2 obtained, lease time 20
Nov 3 02:14:54 info Lease of 192.168.100.2 obtained, lease time 20
Nov 3 02:14:44 info Lease of 192.168.100.2 obtained, lease time 20
Nov 3 02:14:34 info Lease of 192.168.100.2 obtained, lease time 20
Nov 3 02:14:24 info Lease of 192.168.100.2 obtained, lease time 20
Nov 3 02:14:15 info Lease of 192.168.100.2 obtained, lease time 20
Nov 3 02:14:05 info Lease of 192.168.100.2 obtained, lease time 20
Nov 3 02:13:55 info Lease of 192.168.100.2 obtained, lease time 20
Nov 3 02:13:44 info Lease of 192.168.100.2 obtained, lease time 20