You leave it on all the time in one week? Maybe it works a long time and need a break?

Here's a Log from today Dec 05, 2014
The date and Time are off but the NTP server settings are good and before the modem fails, the time is correct!
But as soon as it drops out, the date and time are off again??? I'm not sure if this has anything to do with the disconnection or lack of auto reconnect?

1999-12-31 19:00:26 [6] PPP: ppp0 sent [PADI Host-Uniq(0x00000218)]
1999-12-31 19:00:28 [5] DHCPD: Recv DISCOVER from DC:3A:5E:19:8C:F1
1999-12-31 19:00:28 [5] DHCPD: Send OFFER with ip 192.168.1.100
1999-12-31 19:00:28 [5] DHCPD: Recv REQUEST from DC:3A:5E:19:8C:F1
1999-12-31 19:00:28 [5] DHCPD: Send ACK to 192.168.1.100
1999-12-31 19:00:31 [6] PPP: ppp0 sent [PADI Host-Uniq(0x00000218)]
1999-12-31 19:00:41 [5] DHCPD: Recv REQUEST from 14:99:E2:00:31:D3
1999-12-31 19:00:41 [6] PPP: ppp0 sent [PADI Host-Uniq(0x00000218)]
1999-12-31 19:00:41 [5] DHCPD: Send ACK to 192.168.1.111
1999-12-31 19:00:43 [5] DHCPD: Recv DISCOVER from 00:0E:08:17:A8:C8
1999-12-31 19:00:43 [5] DHCPD: Send OFFER with ip 192.168.1.101
1999-12-31 19:00:43 [5] DHCPD: Recv REQUEST from 00:0E:08:17:A8:C8
1999-12-31 19:00:43 [5] DHCPD: Send ACK to 192.168.1.101
1999-12-31 19:00:44 [5] DHCPD: Recv REQUEST from 74:86:7A:37:A3:20
1999-12-31 19:00:44 [5] DHCPD: REQUEST ip c0a8020b is not in the address pool
1999-12-31 19:00:44 [5] DHCPD: Send NAK
1999-12-31 19:00:45 [5] DHCPD: Recv REQUEST from 74:86:7A:37:A3:20
1999-12-31 19:00:45 [5] DHCPD: REQUEST ip c0a8020b is not in the address pool
1999-12-31 19:00:45 [5] DHCPD: Send NAK
1999-12-31 19:00:45 [5] DHCPD: Recv DISCOVER from 74:86:7A:37:A3:20
1999-12-31 19:00:45 [5] DHCPD: Send OFFER with ip 192.168.1.102
1999-12-31 19:00:45 [5] DHCPD: Recv DISCOVER from 74:86:7A:37:A3:20
1999-12-31 19:00:45 [5] DHCPD: Send OFFER with ip 192.168.1.102
1999-12-31 19:00:48 [5] DHCPD: Recv DISCOVER from 74:86:7A:37:A3:20
1999-12-31 19:00:48 [5] DHCPD: Send OFFER with ip 192.168.1.102
1999-12-31 19:00:49 [5] DHCPD: Recv DISCOVER from 74:86:7A:37:A3:20
1999-12-31 19:00:49 [5] DHCPD: Send OFFER with ip 192.168.1.102
1999-12-31 19:00:49 [5] DHCPD: Recv REQUEST from 74:86:7A:37:A3:20
1999-12-31 19:00:49 [5] DHCPD: Send ACK to 192.168.1.102
1999-12-31 19:00:49 [5] DHCPD: Recv REQUEST from 74:86:7A:37:A3:20
1999-12-31 19:00:50 [5] DHCPD: Send ACK to 192.168.1.102
1999-12-31 19:01:01 [3] PPP: ppp0 Timeout waiting for PADO packets
1999-12-31 19:01:01 [3] PPP: ppp0
1999-12-31 19:01:05 [5] DHCPD: Recv REQUEST from 00:18:61:25:44:73
1999-12-31 19:01:06 [5] DHCPD: Send ACK to 192.168.1.110

these logs are taken just after I reboot since I'm completely locked out of the modem's functions even when connected via RJ45.
Can anyone help? Firmware is the latest version V1-140925.
I tried adjusting the timeout periods but to no success, it still drops out!

Logs got after reboot won't be quite helpful to figure out the issue since reboot will clear the previous log and restore time settings to default.

Received my router a couple of weeks ago and notice is lasts 1-2 days and then existing WIFI and Ethernet devices start reporting no internet activity, no access to router management page, new WIFI connections cannot be established, and only fix is to power off/on. TP-LINK chat support suggested I turn off UPNP (Forwarding -> UPnP). Have done this and waiting to see if it helps.

Received my router a couple of weeks ago and notice is lasts 1-2 days and then existing WIFI and Ethernet devices start reporting no internet activity, no access to router management page, new WIFI connections cannot be established, and only fix is to power off/on. TP-LINK chat support suggested I turn off UPNP (Forwarding -> UPnP). Have done this and waiting to see if it helps