Modem reboots several times in the AM, especially weekdays - Time Warner Internet

#1
This question is about "Modem reboots several times in the AM, especially weekdays", with Time Warner Cable internet and apps. Concord, NC 28025
Single family house (owner)
Earthlink Extreme Cable Internet
Arris/Motorola SB6141
I bought this in June 2014 when TWC started charging a modem rental fee. This replaced several Ambit modems that I had over the years.
Asus RT-N66U, latest firmware
Firmware level in modem (or, post modem page)
Firmware Name: SB_KOMODO-1.0.6.16-SCM00-NOSH
Boot Version: PSPU-Boot(25CLK) 1.0.12.18m3
Hardware Version: 7.0
Firmware Build Time: Feb 16 2016 11:28:04
Confirm modem is Online - Affirmative - shows connected, green dot
Not sure of the exact speed. But when it's working, I max out at 60Mbps/6Mbps. Average 30 second ping
http://www.speedtest.net/my-result/5731764547
Starting a few months ago, my modem reboots and internet goes out for a few minutes. This seem to occur in the middle of the morning and will happen several times throughout the morning.
Then it stabilizes (randomly) and works fine for a few hours. I can't really detect a pattern.
I have contacted support several times and they can't seem to find an issue. So I have gathered all of the info and am presenting it here. I hope we find a solution!
I pulled some stats out of my router and filtered down the log:
18-Oct 23:12:00 WAN Connection: Ethernet link down.
18-Oct 23:12:26 WAN Connection: WAN was restored.
19-Oct 4:09:35 WAN Connection: Ethernet link down.
19-Oct 4:10:01 WAN Connection: WAN was restored.
19-Oct 8:41:00 WAN Connection: Ethernet link down.
19-Oct 8:41:40 WAN Connection: WAN was restored.
19-Oct 8:56:10 WAN Connection: Ethernet link down.
19-Oct 8:56:46 WAN Connection: WAN was restored.
19-Oct 16:06:02 WAN Connection: Ethernet link down.
19-Oct 16:06:26 WAN Connection: WAN was restored.
19-Oct 17:33:47 WAN Connection: Ethernet link down.
19-Oct 17:34:13 WAN Connection: WAN was restored.
19-Oct 19:21:10 WAN Connection: Ethernet link down.
19-Oct 19:21:36 WAN Connection: WAN was restored.
19-Oct 20:09:42 WAN Connection: Ethernet link down.
19-Oct 20:10:16 WAN Connection: WAN was restored.
20-Oct 9:44:50 WAN Connection: Ethernet link down.
20-Oct 9:45:19 WAN Connection: WAN was restored.

[TABLE]

Time

Priority

Code

Message


Oct 21 2016 09:40:52

3-Critical

R02.0

No Ranging Response received - T3 time-out;CM-MAC=90:3e:ab:87:f1:d2;CMTS-MAC=00:17:10:88:f8:27;CM-QOS=1.1;CM-VER=3.0;


Oct 21 2016 08:11:30

3-Critical

R06.0

Unicast Maintenance Ranging attempted - No response - Retries exhausted;CM-MAC=90:3e:ab:87:f1:d2;CMTS-MAC=00:17:10:88:f8:27;CM-QOS=1.1;CM-VER=3.0;


Oct 21 2016 08:11:30

3-Critical

R03.0

Ranging Request Retries exhausted;CM-MAC=90:3e:ab:87:f1:d2;CMTS-MAC=00:17:10:88:f8:27;CM-QOS=1.1;CM-VER=3.0;


Oct 21 2016 08:11:30

3-Critical

R06.0

Unicast Maintenance Ranging attempted - No response - Retries exhausted;CM-MAC=90:3e:ab:87:f1:d2;CMTS-MAC=00:17:10:88:f8:27;CM-QOS=1.1;CM-VER=3.0;


Oct 21 2016 08:11:30

3-Critical

R03.0

Ranging Request Retries exhausted;CM-MAC=90:3e:ab:87:f1:d2;CMTS-MAC=00:17:10:88:f8:27;CM-QOS=1.1;CM-VER=3.0;


Oct 21 2016 08:11:29

3-Critical

R06.0

Unicast Maintenance Ranging attempted - No response - Retries exhausted;CM-MAC=90:3e:ab:87:f1:d2;CMTS-MAC=00:17:10:88:f8:27;CM-QOS=1.1;CM-VER=3.0;


Oct 21 2016 08:11:29

3-Critical

R03.0

Ranging Request Retries exhausted;CM-MAC=90:3e:ab:87:f1:d2;CMTS-MAC=00:17:10:88:f8:27;CM-QOS=1.1;CM-VER=3.0;


Oct 21 2016 08:11:29

3-Critical

R02.0

No Ranging Response received - T3 time-out;CM-MAC=90:3e:ab:87:f1:d2;CMTS-MAC=00:17:10:88:f8:27;CM-QOS=1.1;CM-VER=3.0;


Oct 21 2016 08:04:39

3-Critical

R06.0

Unicast Maintenance Ranging attempted - No response - Retries exhausted;CM-MAC=90:3e:ab:87:f1:d2;CMTS-MAC=00:17:10:88:f8:27;CM-QOS=1.1;CM-VER=3.0;


Oct 21 2016 08:04:39

3-Critical

R03.0

Ranging Request Retries exhausted;CM-MAC=90:3e:ab:87:f1:d2;CMTS-MAC=00:17:10:88:f8:27;CM-QOS=1.1;CM-VER=3.0;


Oct 21 2016 08:04:38

3-Critical

R06.0

Unicast Maintenance Ranging attempted - No response - Retries exhausted;CM-MAC=90:3e:ab:87:f1:d2;CMTS-MAC=00:17:10:88:f8:27;CM-QOS=1.1;CM-VER=3.0;


Oct 21 2016 08:04:38

3-Critical

R03.0

Ranging Request Retries exhausted;CM-MAC=90:3e:ab:87:f1:d2;CMTS-MAC=00:17:10:88:f8:27;CM-QOS=1.1;CM-VER=3.0;


Oct 21 2016 08:04:38

3-Critical

R02.0

No Ranging Response received - T3 time-out;CM-MAC=90:3e:ab:87:f1:d2;CMTS-MAC=00:17:10:88:f8:27;CM-QOS=1.1;CM-VER=3.0;


Oct 21 2016 06:47:15

5-Warning

U102.0

TCS Partial Service;CM-MAC=90:3e:ab:87:f1:d2;CMTS-MAC=00:17:10:88:f8:27;CM-QOS=1.1;CM-VER=3.0;


Oct 21 2016 06:47:15

5-Warning

U103.0

Initializing Channel Timeout Expires - Time the CM can perform initial ranging on all upstream channels in the TCS has expired;CM-MAC=90:3e:ab:87:f1:d2;CMTS-MAC=00:17:10:88:f8:27;CM-QOS=1.1;CM-VER=3.0;


Oct 21 2016 06:46:14

6-Notice

I401.0

TLV-11 - unrecognized OID;CM-MAC=90:3e:ab:87:f1:d2;CMTS-MAC=00:17:10:88:f8:27;CM-QOS=1.1;CM-VER=3.0;


Oct 21 2016 06:46:14

5-Warning

Z00.0

MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1;CM-MAC=90:3e:ab:87:f1:d2;CMTS-MAC=00:17:10:88:f8:27;CM-QOS=1.1;CM-VER=3.0;


Jan 01 1970 00:00:21

3-Critical

R02.0

No Ranging Response received - T3 time-out;CM-MAC=90:3e:ab:87:f1:d2;CMTS-MAC=00:17:10:88:f8:27;CM-QOS=1.1;CM-VER=3.0;


Jan 01 1970 00:00:15

6-Notice

N/A

Cable Modem Reboot due to T4 timeout ;CM-MAC=90:3e:ab:87:f1:d2;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.0;


Oct 21 2016 06:45:27

3-Critical

R04.0

Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=90:3e:ab:87:f1:d2;CMTS-MAC=00:17:10:88:f8:27;CM-QOS=1.1;CM-VER=3.0;


[/TABLE]


[TABLE]

Downstream

Bonding Channel Value


Channel ID

17

18

19

20

21

22

23

24


Frequency

555000000 Hz

561000000 Hz

567000000 Hz

573000000 Hz

579000000 Hz

585000000 Hz

591000000 Hz

597000000 Hz


Signal to Noise Ratio

37 dB

38 dB

37 dB

37 dB

38 dB

37 dB

37 dB

37 dB


Downstream Modulation

QAM256

QAM256

QAM256

QAM256

QAM256

QAM256

QAM256

QAM256


Power Level
[TABLE]

The Downstream Power Level reading is a snapshot taken at the time this page was requested. Please Reload/Refresh this Page for a new reading


[/TABLE]

2 dBmV

2 dBmV

2 dBmV

1 dBmV

2 dBmV

1 dBmV

1 dBmV

1 dBmV


[/TABLE]

[TABLE]

Upstream

Bonding Channel Value


Channel ID

2

1

3

4


Frequency

24200000 Hz

19400000 Hz

30600000 Hz

37000000 Hz


Ranging Service ID

5103

5103

5103

5103


Symbol Rate

5.120 Msym/sec

2.560 Msym/sec

5.120 Msym/sec

2.560 Msym/sec


Power Level

43 dBmV

43 dBmV

45 dBmV

44 dBmV


Upstream Modulation

[3] QPSK
[1] 16QAM
[2] 64QAM

[3] QPSK
[2] 16QAM

[3] QPSK
[1] 16QAM
[2] 64QAM

[3] QPSK
[3] 16QAM


Ranging Status

Success

Success

Success

Success


[/TABLE]

[TABLE]

Signal Stats (Codewords)

Bonding Channel Value


Channel ID

17

18

19

20

21

22

23

24


Total Unerrored Codewords

784125768

783456150

783465364

783443452

783439824

783439536

783441202

783442159


Total Correctable Codewords

151

127

13

180

80

152

202

163


Total Uncorrectable Codewords

1795

1560

635

1483

1709

1537

1473

1554


[/TABLE]

My wife and I chose the available options to customize our new two story home in 2002. There are 5 runs of RG6 to various rooms all terminating into an On-Q panel in my coat closet.
From there, another RG6 runs to a box on the side of my garage (about 40 ft away) A buried cable runs through my yard to the TWC plastic pedestal in the corner of my front yard. Incidentally, a new cable was trenched around 2008. I was having some issues with my connection and a technician determined that an inferior grade of cable was originally trenched, so they ran a new one. The cable was ran in a more direct path (under my driveway) instead of around the back of the house and then to the side of my garage. Service was rock solid stable for several years until recently. About 6 months ago, things went downhill.
Originally, I had Time Warner TV service + plus Earthlink Cable internet (which is fully serviced by TWC.) These were installed at the same time and everything was split out internally. I later switched to satellite TV and dropped TWC TV service (but kept Earthlink Cable)
When I made the switch to satellite, I used this opportunity to move my cable modem and separate wireless router down into that closet. Omitting the splitters and a run up to my office. There is a direct connection off the street to the modem (with 2 barrel connectors joining the RG6)
The router and modem are mounted on a board on the back of the On-Q panel. It's accessible from a storage closet in my garage (but is insulated under the stairs of the house.)
I converted my old home phone wiring by crimping on RJ45 connectors since CAT5 was used. I have 4 LAN drops in various rooms that I use. It's about an even split between hard wired and wireless clients

3' CAT6 shielded cable connecting the modem and router. They are mounted on a board on the wall under the stairs of my house
Originally both were plugged into a surge protector, but TWC support had me move the cable modem power supply to be direct in the outlet.
Any recent or coincident changes or upgrades to your system, or any neighborhood changes: Not that I'm aware of

Pathping
Tracing route to rr.com [71.74.180.193]
over a maximum of 30 hops:
0 HardWiredDevice [192.168.0.227]
1 router.asus.com [192.168.0.1]
2 142.254.194.53
3 cpe-174-111-111-109.triad.res.rr.com [174.111.111.109]
4 cpe-024-074-248-034.carolina.res.rr.com [24.74.248.34]
5 24.93.67.206
6 bu-ether14.atlngamq46w-bcr00.tbone.rr.com [66.109.6.82]
7 bu-ether5.chrcnctr01w-bar01.tbone.rr.com [66.109.1.8]
8 24.161.238.58
9 71.74.180.193
10 71.74.180.193

Computing statistics for 250 seconds...
Source to Here This Node/Link
Hop RTT Lost/Sent = Pct Lost/Sent = Pct Address
0 HardWiredDevice [192.168.0.227]
0/ 100 = 0% |
1 0ms 0/ 100 = 0% 0/ 100 = 0% router.asus.com [192.168.0.1]
0/ 100 = 0% |
2 16ms 0/ 100 = 0% 0/ 100 = 0% 142.254.194.53
0/ 100 = 0% |
3 21ms 0/ 100 = 0% 0/ 100 = 0% cpe-174-111-111-109.triad.res.rr.com [174.111.111.109]
0/ 100 = 0% |
4 15ms 0/ 100 = 0% 0/ 100 = 0% cpe-024-074-248-034.carolina.res.rr.com [24.74.248.34]
0/ 100 = 0% |
5 17ms 0/ 100 = 0% 0/ 100 = 0% 24.93.67.206
0/ 100 = 0% |
6 33ms 0/ 100 = 0% 0/ 100 = 0% bu-ether14.atlngamq46w-bcr00.tbone.rr.com [66.109.6.82]
0/ 100 = 0% |
7 39ms 0/ 100 = 0% 0/ 100 = 0% bu-ether5.chrcnctr01w-bar01.tbone.rr.com [66.109.1.8]
0/ 100 = 0% |
8 35ms 0/ 100 = 0% 0/ 100 = 0% 24.161.238.58
0/ 100 = 0% |
9 30ms 0/ 100 = 0% 0/ 100 = 0% 71.74.180.193
0/ 100 = 0% |
10 30ms 0/ 100 = 0% 0/ 100 = 0% 71.74.180.193

This usually happen in the middle of the morning on weekdays. Pretty low usage at that time. My wife is home (and just does Facebook and stuff), the kids are in school. On the days I work from home, I connect to a virtual desktop. I don't need VPN, the bandwidth needed for VDI is actually a lot lower than I thought.

I do leave a torrent client running on one desktop, but I've got the upload throttled to 578 kB/s and I stop all torrents once I hit a 1:1 ratio. And I don't download things often. Just a couple things a month.


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