Disconnection TG582n

[#1]

Just lost internet connection although, initially, the router stats showed as still connected.
Then the router pages failed to load after which I checked the Event log pasted below:

Quote

Jan 1 00:03:23 CONFIGURATION saved by TR69 Info Jan 1 00:02:01 FIREWALL event (1 of 6): deleted rules Warning Jan 1 00:02:01 PPP link up (Internet) [212.xxx.xxx.xxx] Info Jan 1 00:02:00 PPP CHAP Chap receive success : authentication ok Info Jan 1 00:01:58 PPP CHAP Receive challenge (rhost = pcl-ag01) Info Jan 1 00:01:57 PPP CHAP Receive challenge (rhost = bras-red12.l-ste) Info Jan 1 00:01:43 xDSL linestate up (ITU-T G.992.3; downstream: 5263 kbit/s, upstream: 995 kbit/s; output Power Down: 19.3 dBm, Up: 12.8 dBm; line Attenuation Down: 45.0 dB, Up: 25.6 dB; snr Margin Down: 6.2 dB, Up: 6.3 dB) Info Jan 1 00:01:17 xDSL linestate down Info Jan 1 00:01:13 LOGIN User admin logged in on [HTTP] (from 192.168.1.10) Error Jan 1 00:01:06 [ANTI_SPOOFD] (err) llist_getobject_at for ENV.ANTI_SPOOFD's value failed Info Jan 1 00:00:47 xDSL linestate down Warning Jan 1 00:00:38 DHCS server up Info Jan 1 00:00:38 FIREWALL event (1 of 1): deleted rules Info Jan 1 00:00:38 FIREWALL level changed to Standard. Error Jan 1 00:00:37 FIREWALL exact tcp state check (1 of 1): Protocol: TCP Src ip: 192.168.1.10 Src port: 61147 Dst ip: 98.138.26.79 Dst port: 5050 Error Jan 1 00:00:36 UPnP framework enabled Info Jan 1 00:00:36 FIREWALL event (1 of 1): modified rules Info Jan 1 00:00:36 FIREWALL event (1 of 1): created rules Error Jan 1 00:00:30 UPnP framework disabled Error Jan 1 00:00:28 UPnP framework disabled Error Jan 1 00:00:26 UPnP framework disabled Warning Jan 1 00:00:14 KERNEL Warm restart

Note that the time now shows as Jan 1 2000
The last event before this showed:

Quote

Info Nov 29 16:39:04 LOGIN User admin logged in on [HTTP] (from 192.168.1.10)

just a few minutes before.
Both the up and down syncs are slightly lower than before but only by around 100Kbps.
New stats:

Quote

Uptime: 0 days, 0:11:21 DSL Type: ITU-T G.992.3 Bandwidth (Up/Down) [kbps/kbps]: 995 / 5.263 Data Transferred (Sent/Received) [MB/MB]: 22,36 / 30,71 Output Power (Up/Down) [dBm]: 12,8 / 0,0 Line Attenuation (Up/Down) [dB]: 25,6 / 45,0 SN Margin (Up/Down) [dB]: 5,9 / 5,3

This is a new router (less than a month). Is this a sign of a router problem or something else going wrong?
I have no idea how to interpret the router's Event Log.

[#2]

Just to add that the time is back to normal without my intervention

[#3]

Since none of the experts have replied, here's my offer. 
The router log looks normal and typical to me - I see such entries every couple of months or so and I read the log as follows:
The router did a warm reboot shortly after 16:40 on Nov 29.  It lost the time during the reboot, thus it displays Jan 1 00:00:00.  The router has then automatically reconnected - that's all the messages after  Jan 1 00:00. At the next time sync, it corrects the time to current.  The messages all appear normal to me although I don't fully understand them, nor have I been able to find an easy translation into normal english. 
FWIW, PPP is internet and xDSL is broadband, "PPP down" doesn't appear on the Plusnet radius records, xDSL does.
I hope I understood your question, I wasn't trying to give egg sucking lessons.

[#4]

Thanks, frank39.
Any information is helpful and your was appreciated.
I've noticed a few disconnections lately and the only reason I have noticed them is that Yahoo Messenger's main window refreshes, shows me as logged out then logs back in again.
When I look at the DSL Connection and Internet within the Router's pages they have shown no sign of disconnects. My PC is connected by Ethernet.
Yesterday was different in that it affected my wife's PC and laptop as well and they are wireless hence my attempt at deciphering the router logs.