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Bob4
Account deleted

join:2012-07-22
New Jersey
reply to DAOWAce

Re: Internet having issues after upgrading cable service

If you had OOL with no TV service, there was likely a filter which was removed when you got the TV service added. If anything, this should have helped your signals.

They also likely added a splitter for your modem & TV, so you might want to check those connections. Tell us what kind (2-way? 3-way?) splitter you have and how your modem is connected.

Also post your receive and transmit signal levels.


DAOWAce

join:2006-10-25
Flanders, NJ

1 edit
We had basic cable with Cablevision. (added to OP)

Signal levels are worse than they were when we optimized our wiring a year and a half ago trying to fix CV's issues. Used to have a perfect 0 on the downstream power level. Not happy seeing them the way they are now when nothing has changed on our end (except the addition of a TiVo box in place of Cablevision's DVR box).

Downstream

Downstream 1 2 609.00 MHz -7.17 dBmV 36.17 dB 256QAM
Downstream 2 1 603.00 MHz -7.54 dBmV 35.42 dB 256QAM
Downstream 3 3 615.00 MHz -6.70 dBmV 35.25 dB 256QAM
Downstream 4 4 621.00 MHz -7.51 dBmV 35.25 dB 256QAM
Downstream 5 5 627.00 MHz -7.25 dBmV 35.08 dB 256QAM

Upstream

Upstream 1 3 32.00 MHz 43.75 dBmV DOCSIS2.0 (ATDMA) 5120 kSym/s 64QAM


DOCSIS 2.0 upstream? dafuk?

Bob4
Account deleted

join:2012-07-22
New Jersey
Although not great, those levels are OK. All I can suggest is checking your wiring, and then making a service appointment.

cablewizzard

join:2009-06-14
Hicksville, NY
kudos:1
reply to DAOWAce
said by DAOWAce:

We had basic cable with Cablevision. (added to OP)

Signal levels are worse than they were when we optimized our wiring a year and a half ago trying to fix CV's issues. Used to have a perfect 0 on the downstream power level. Not happy seeing them the way they are now when nothing has changed on our end (except the addition of a TiVo box in place of Cablevision's DVR box).

You not being happy with the signal levels is not important - because the levels are perfectly fine, you just don't know that.

Your RX levels are between -10 and +10 dBmV , which enables you to maintain a QAM lock, and decode frames with low BER.

Think of the signal strength as a number indicating the distance from the center lane in a 400m dash: every runner runs the same distance because they are set back a different amount (= cable modem has different signal level depending on distance from node), and winning does not depend on which lane you start in, and no particular lane will give you an advantage over any other.

The TLV-11 failure in the log is not indicative of a problem you are able to observe (at all) - I am almost sure this does not occur with every reboot either. Do tell if it does. TM822?

Your problem, once again, is RF related, in a manner not related to actual signal strength. What happens if you disco the DVR, and hook the TIVO back up? Or, if you have a terminator cap laying around: you disco the RF run to the TIVO/DVR room at the splitter (and screw the terminator on)?


thinkpad

join:2000-07-26
Stamford, CT
Reviews:
·Optimum Online
·NETPLEX
reply to DAOWAce
said by DAOWAce:

Upstream

Upstream 1 3 32.00 MHz 43.75 dBmV DOCSIS2.0 (ATDMA) 5120 kSym/s 64QAM

DOCSIS 2.0 upstream? dafuk?

It's Docsis 2.0 because there is only one upstream channel