Participant

Moved to new location.. poor connection?

I recently moved to a new location and had the 100/10 service turned on with my own modem.

I'm having a constant issue of when the modem is power cycled. I'll usually get a 114/12 down/up speedrest result. However, after a couple hours the connection will go all the way down to about 5/12 down/up. I can't stream anything when this happens as it causes a constant buffering issue and sometimes no connection at all... Each time I have to power cycle the modem and it will hold.good for another couple hours.
I've went and made sure all cable connections are tight including behind the wall plate and outside to the splitter. There is a 8 port splitter with power connected. All the unused ports on the splitter have proper caps installed.

I've tried completely removing the splitter out of the equation and connecting the modem directly to in incoming service line or "line drop". That actually made the connection worse! I was getting 1/1 down up speed result.

Here is my modem connection status

Downstream
DCID Freq Power SNR Modulation Octets Correcteds Uncorrectables
Downstream 1 1 627.00 MHz 0.10 dBmV 38.98 dB 256QAM 210779810 91 0
Downstream 2 2 633.00 MHz -0.30 dBmV 38.98 dB 256QAM 206471888 107 1
Downstream 3 3 639.00 MHz -0.30 dBmV 38.98 dB 256QAM 163182408 94 5
Downstream 4 4 645.00 MHz -0.30 dBmV 38.61 dB 256QAM 221173313 115 6
Downstream 5 5 651.00 MHz -0.20 dBmV 38.98 dB 256QAM 239700027 93 4
Downstream 6 6 657.00 MHz -0.70 dBmV 38.61 dB 256QAM 229562923 96 6
Downstream 7 7 663.00 MHz -1.00 dBmV 38.61 dB 256QAM 216465530 94 3
Downstream 8 8 669.00 MHz -1.10 dBmV 38.61 dB 256QAM 224357872 113 5
Downstream 9 9 675.00 MHz -1.10 dBmV 38.61 dB 256QAM 273441473 109 0
Downstream 10 10 681.00 MHz -1.10 dBmV 38.61 dB 256QAM 300234542 95 5
Downstream 11 11 687.00 MHz -0.90 dBmV 38.61 dB 256QAM 218807587 90 6
Downstream 12 12 693.00 MHz -0.70 dBmV 38.61 dB 256QAM 280555893 71 4
Downstream 13 13 699.00 MHz -1.50 dBmV 37.36 dB 256QAM 198806489 103 6
Downstream 14 14 705.00 MHz -3.90 dBmV 37.36 dB 256QAM 147935768 115 2
Downstream 15 15 711.00 MHz -3.50 dBmV 37.64 dB 256QAM 178335985 128 1
Downstream 16 16 717.00 MHz -3.10 dBmV 37.64 dB 256QAM 179132204 116 9
Downstream 17 17 723.00 MHz -2.90 dBmV 37.64 dB 256QAM 152051836 94 2
Downstream 18 18 729.00 MHz ---- ---- ---- ---- ---- ----
Downstream 19 19 735.00 MHz -3.50 dBmV 31.69 dB 256QAM 87271797 263572 275342
Downstream 20 20 741.00 MHz -2.90 dBmV 36.39 dB 256QAM 203337674 85 4
Downstream 21 21 747.00 MHz -4.10 dBmV 37.36 dB 256QAM 193811952 118 2
Downstream 22 22 753.00 MHz -3.30 dBmV 37.64 dB 256QAM 242187016 110 5
Downstream 23 23 759.00 MHz -3.60 dBmV 37.64 dB 256QAM 189138747 124 4
Downstream 24 24 765.00 MHz -3.70 dBmV 37.36 dB 256QAM 197424452 108 6
Reset FEC Counters
Upstream
UCID Freq Power Channel Type Symbol Rate Modulation
Upstream 1 90 24.20 MHz 50.75 dBmV DOCSIS2.0 (ATDMA) 5120 kSym/s 64QAM
Upstream 2 92 37.00 MHz 41.50 dBmV DOCSIS2.0 (ATDMA) 2560 kSym/s 64QAM
Upstream 3 91 30.60 MHz 43.25 dBmV DOCSIS2.0 (ATDMA) 5120 kSym/s 64QAM
Upstream 4 89 19.40 MHz 41.50 dBmV DOCSIS1.x (TDMA) 2560 kSym/s 16QAM
4 REPLIES 4
Participant

Re: Moved to new location.. poor connection?

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Proven Sharer

Re: Moved to new location.. poor connection?

You are getting ingress at 735 MHz, which implies broken / frayed coax (in your home or out in the weather somewhere;  it could be a pole / trunk line issue).  Check for open / unused cable drops in your home (they should be terminated with resistors) and loose connections.

 

This (735 MHz) is part of the spectrum that was auctioned off to the telco's for more cell phone service.  Are you located near any cell towers?

Proven Sharer

Re: Moved to new location.. poor connection?

Thanks for posting your signal level log, it makes the up-front diagnosis much easier.  I can see two separate potential problems with your modem connection:

1)  On the upstream side you have one channel trying to run excessive power because it is not being heard at the head end.  That symptom is almost always a cable system problem. 

2)  On the downstream side you have one channel [18] missing completely and a second [19] that is plagued with uncorrectable errors.  These suggest ingress interference, aka leakage, of external signals into the cable system (and maybe a system hardware failure on 18).  It could be your cell phone sitting within 10 feet of the modem, OR a loose or broken coax connector indoors and there's a cell site within a half mile of your home, OR it could be a loose or broken connector outdoors on the mainline trunk cable that is near a cell site. 

First make sure all your indoor connectors are "bright and tight" with no loose fitting nuts (they are 7/16") or water corrosion.  If that doesn't fix it, the fault is probably outdoors and not yours to fix. 

For that you need to CALL SPECTRUM and schedule a home service tech visit.  Don't let the m talk you into "It's working again" because they will cancel your service call.  Thehome techs can usually determine whether the 'leak' is inside or outside and fix the indoor stuff themselves.  For outdoor leaks the home tech needs his ladder to check your pole drop.  After that they may need to arrange for multiple crews with bucket trucks, which can take a few days to coordinate.

 

Participant

Re: Moved to new location.. poor connection?

Thank you for the responses! 

 

I had a tech cme out..  He tested the lines and replaced the line wrapping around the house from the underground drop. Recent status reports have shown a large sum of uncorrectable errors..  The weather in the area has gone from 50's F to a fast drop of lower 30's F.