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[Cable] Connecting via Docsis 2 on SB6120Anyone else having this problem i just got my cable service up and it connects with no downstream channel bonding.....i know i'm being kinda picky but it kinda sucks when i pay the extra money for docsis 3 modem and it fails to connect at docsis 3 and reconnects at docsis 2
i took the modem to my brother who has rogers and docsis 3 works perfect:( |
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Jayar
Member
2010-Dec-3 7:58 pm
Are you on Express? Chennel bonding will only work on the Extreme tiers. |
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im on the 15Mbit 200Gb cap so yes and like i said channel bonding worked at my brothers with the modem just not at my house |
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 ssherwood
Premium Member
join:2002-02-23
Toronto, ON |
to mikefallen
Hey there - DOCSIS 3 is not available everywhere on Rogers network, so it would appear that your brother's place is within an area with that level of service while you are not.
Out of curiosity, which POI do you connect through?
-- SS |
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Thats the funny thing we are both connected at mcnicoll.cable.teksavvy.com |
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Technicolor TC4350
Asus RT-AC56
Grandstream HandyTone 702/704
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to mikefallen
said by mikefallen:Anyone else having this problem i just got my cable service up and it connects with no downstream channel bonding.....i know i'm being kinda picky but it kinda sucks when i pay the extra money for docsis 3 modem and it fails to connect at docsis 3 and reconnects at docsis 2
Now we know that not all CMTS are docsis3. |
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| bjlockie |
to mikefallen
said by mikefallen:Thats the funny thing we are both connected at mcnicoll.cable.teksavvy.com
That is very weird. Could Rogers have more than one CMTS behind a phub? I assumed they were 1 to 1. |
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could it be that my modem is not getting good enough signal to sync at docsis 3 |
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 nitzguy
Premium Member
join:2002-07-11
Sudbury, ON |
to bjlockie
said by bjlockie:said by mikefallen:Anyone else having this problem i just got my cable service up and it connects with no downstream channel bonding.....i know i'm being kinda picky but it kinda sucks when i pay the extra money for docsis 3 modem and it fails to connect at docsis 3 and reconnects at docsis 2
Now we know that not all CMTS are docsis3. The CMTSes are DOCSIS 3 capable, it would make no sense for them not to be. What you want to do is to call TSI up and see whats going on. |
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ssherwood
Premium Member
join:2002-02-23
Toronto, ON |
said by nitzguy:The CMTSes are DOCSIS 3 capable, it would make no sense for them not to be. What you want to do is to call TSI up and see whats going on.
It isn't his account/modem as he gets the same modem to channel bond at his brother's place - at least I think that is what the OP was saying. So, it is either the local cable lines, or the head-end in the OP's neighborhood. Can you pull the line stats from the modem and post them? Connect your modem directly to a PC and browse to » 192.168.100.1/cmSignal.htm - you might need to manually assign your PC an IP in the same subnet - eg. 192.168.100.10. -- SS |
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This is connection from my house as you can see 1 downstream channel Channel ID 54
Frequency 615000000 Hz
Signal to Noise Ratio 36 dB
Downstream Modulation QAM256
Power Level
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
-4 dBmV
Upstream Bonding Channel Value
Channel ID 3
Frequency 31296000 Hz
Ranging Service ID 535
Symbol Rate 2.560 Msym/sec
Power Level 44 dBmV
Upstream Modulation [3] QPSK
[5] 16QAM
Ranging Status Success
Signal Stats (Codewords) Bonding Channel Value
Channel ID 54
Total Unerrored Codewords 289217425
Total Correctable Codewords 16
Total Uncorrectable Codewords 646
This is connection from my brothers house as you can see 4 downstream channels Channel ID 51 4 5 6
Frequency 615000000 Hz 591000000 Hz 597000000 Hz 603000000 Hz
Signal to Noise Ratio 36 dB 35 dB 36 dB 36 dB
Downstream Modulation QAM256 QAM256 QAM256 QAM256
Power Level
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
-2 dBmV -3 dBmV -3 dBmV -3 dBmV
Upstream Bonding Channel Value
Channel ID 2
Frequency 25296000 Hz
Ranging Service ID 542
Symbol Rate 2.560 Msym/sec
Power Level 48 dBmV
Upstream Modulation [3] QPSK
[5] 16QAM
Ranging Status Success
Signal Stats (Codewords) Bonding Channel Value
Channel ID 51 4 5 6
Total Unerrored Codewords 22583784 22584160 22583898 22584251
Total Correctable Codewords 17 0 0 1
Total Uncorrectable Codewords 653 548 491 541
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to mikefallen
YEP, ISSUE WITH SIGNAL GETTING TO EQUIP OR MAINTENANCE ISSUE. MAKE SURE YOU HAVEN'T INSTALLED ANY GOLD STUFF, AS GOLD IS GARBAGE WHEN IT COMES TO CABLE (99.9% OF THE TIME).
IF YOU HAVE CABLE A ROGERS TECH INSTALLED GOING TO SOMETHING IN YOUR HOUSE, DISCONNECT WHATEVER YOU HAVE THAT CABLE GOING TO AND PLUG IN YOUR MODEM. THE "DS" LIGHT WILL GO BLUE WHEN IT'S CONNECTED VIA DOCSIS 3, GREEN IF DOCSIS 2. IF YOU HAVE ROGERS HOME PHONE TOO, AND NO ALARM, THAT WOULD BE THE PRIMARY LOCATION TO TEST AS THIS SERVICE IS A HIGH PRIORITY TO ROGERS AND IF IT DOESN'T CONNECT THERE, THEN YOU HAVE A PROBLEM FOR A TECHNICIAN DEFINITELY (TO FIX AN ISSUE WHILE THERE OR ESCALATE TO MAINTENANCE) |
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I don't have any other rogers services ....the line comes in my home and connects directly to my modem so splitters or anything.
Everytime i connect the modem it trys to connect via docsis 3 fails then restarts and connects at docsis 2... |
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to mikefallen
Do you live in an MDU? Multi dwelling unit? |
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Nope just my family.... that again is the weird part my brother lives in a basement apartment and has 3 splitters before his modem and still gets a really good signal |
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to mikefallen
TX of 44 & RX -4 are in spec, but it sounds to me like there is an issue somewhere. Minimum levels for rhp/rhsi is 10 at the tap (depending which mtsc tech you speak with). Assuming your drop is 150' & you have 50' riser that's about 9 db of loss, and probably a splitter in the cse (customer service enclosure - the grey box) that's -3.5 db. If the tap is at minimum 10, 12.5 db loss brings you to -2.5. This is with all guesses. Could have a squirrel chewed on the lines, wet splitter in the cse, or splitter at the tap, tap out of spec, but definitely sounds like you need a tech. |
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I have hooked up my modem directly to the demarcation point and it wont sync in docsis 3 mode....and the technician just came and fixed my line today  he grounded it to my water hose tap |
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to mikefallen
Yes, well if he has all good cabling and good splitters from tap to modem, and there are no problems everywhere, most equipment will function reliably to -15 rx and tx to around 55. Spec for docsis 2 modems in reality is -15 and i don't remember tx but it's up a bit from the current passing of 51. Docsis 3 modems, with bonding 8, tx has to come down to 51 & rx i believe -10 at the lowest (at least that's what the motorola 8x4x bonded modem manual says). I believe -12, -13 for 4x1x. |
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| aereolis |
to mikefallen
That doesn't necessarily mean it's all good what he/she did. He grounded because that's spec, but did he check the drop? The service from the pole/strand to your house or the burial? |
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| aereolis |
to mikefallen
Did he mention anything to you about maintenance or call in to get you a ticket? |
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No he said my signal were all ok i didn't really ask for specifics such as the dBmV drops and such |
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 HiVolt
Premium Member
join:2000-12-28
Toronto, ON |
HiVolt
Premium Member
2010-Dec-3 11:13 pm
wow, that's odd and interesting... I have worse stats than you at home and my SB6120 bonds channels just fine. It must be something local to your area, maybe something is broken and they're fixing it, in the mean time falling back to single channel. |
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yeah i hope, the whole reason i payed up for the new modem was for d3
What part of scarborough are you in im at like mCcowan and kingston rd |
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to mikefallen
Well if there is something that he sent back to rogers to have something fixed by maintenance, the maximum amount of time you'd have to wait to see a resolution from rogers side would be one week. The work techs do is all what's called piece work (again this is for about 99% of techs). In and out, they check with their meter that it's between +10 & -10 on three check frequencies, 4, 70 & 135/136 to get a sampling to see if there is a problem somewhere. This is a very basic check and won't see even if a modem will connect. This is because rogers doesn't pay them to verify if a modem connects, only to run the cable to a specific location. Thus the occasional bad experience with third party internet access (TPIA) via rogers because of the agreement between rogers and the various TPIA providers.
Call teksavvy or post in the direct forum. |
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HiVolt
Premium Member
join:2000-12-28
Toronto, ON |
to mikefallen
Kingston Rd & Guildwood. |
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to mikefallen
U? By the lake eh? I have a friend over there, right by the train tracks. |
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HiVolt
Premium Member
join:2000-12-28
Toronto, ON |
HiVolt
Premium Member
2010-Dec-3 11:18 pm
well no not quite by the lake, pretty much at the gates of guildwood, across from the big condos. |
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to HiVolt
Yeah i posted in the direct forum and i am kinda getting the feeling that they are just gonna say " if your getting your advertised speeds then it doesn't matter d2 or d3" |
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nitzguy
Premium Member
join:2002-07-11
Sudbury, ON |
nitzguy
Premium Member
2010-Dec-3 11:22 pm
said by mikefallen:Yeah i posted in the direct forum and i am kinda getting the feeling that they are just gonna say " if your getting your advertised speeds then it doesn't matter d2 or d3"
They would be right, because in reality they have no direct control whether you get multi-channel bonding or not...and I'm sure for 99.9% of the people out there, they're not checking to see these sorts of things.
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he grounded it to my water hose tap 