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SB6183 power upstream bond channel

Modem:  ARRIS SB6183 (Software Version SB6183-9.2.0.0-GA-04-37-NOSH)

Router:   ARRIS SBR-AC1750 (Firmware 1.0.10)

Tier:  Ultimate

For the past 5 months, I've been experiencing fairly persistent intermittent connection speed problems, requiring routine power cycling of my modem, a few times each day.

Last Saturday, a Cox tech came to my house and said that my connection is fine.  The wiring at my house is fine.

I just got off the phone with a rep at Arris.

He said that the SB6183 is the only modem currently sold by Arris which requires a power upstream bond channel between 51 dBmV - 45 dBmV.  Without this, users will suffer performance problems.  He also proclaimed that this problem is often overlooked by technical support representatives, due to it being an anomaly. 

https://arris.my.salesforce.com/sfc/p/#30000000kUAL/a/a0000000MLuA/rCn5g0YfCi5450215dIXC3GfMjplYLbVi3Mtxa516xA

The Arris rep said that Cox needs to increase the signal strength being sent to my modem, within these numbers: 51 dBmV - 45 dBmV.

It is best to be in the middle of this upstream bonded channel power interval: 51 dBmV - 45 dBmv.

Upstream Bonded Channels
Channel Lock Status US Channel Type Channel ID Symbol Rate Frequency Power
1 Locked ATDMA 2 5120 Ksym/sec 23300000 Hz 40.0 dBmV
2 Locked TDMA and ATDMA 1 2560 Ksym/sec 18400000 Hz 40.0 dBmV
3 Locked ATDMA 3 5120 Ksym/sec 29800000 Hz 41.5 dBmV
4 Locked ATDMA 4 5120 Ksym/sec 36300000 Hz 41.5 dBmV

Please adjust my upstream bonded channel according to the requirements for my modem.

It is best to be in the middle of this upstream bonded channel power interval: 51 dBmV - 45 dBmv.

  • Continuing to experience performance issues, in regards to speed.

    Just got off the phone with Cox tier 2 tech support rep, stating my modem signal is within range.  

    The Upstream Bonded Channel cannot be adjusted to ensure it is within ideal power range for this modem.

    On the phone with Arris now.  Tempted to return this SB6183 asap.  

  • ***Update***
    • SB6190
    • SB6183

    Both modems need a an upstream bonded channel power signal 51 dBmV - 45 dBmV.

    Without this signal, they will experience performance issues.

    Suggested solutions for Cox:

    Use attenuator: to adjust

    Add new / change current splitter configuration

    Adjust amplifier / service amplifier at house / service port at street

    A rep was here for 10 minutes, installed an attenuator.

    My levels are better now.

    Upstream Bonded Channels
    Channel Lock Status US Channel Type Channel ID Symbol Rate Frequency Power
    1 Locked ATDMA 2 5120 Ksym/sec 23300000 Hz 46.0 dBmV
    2 Locked TDMA and ATDMA 1 2560 Ksym/sec 18400000 Hz 46.0 dBmV
    3 Locked ATDMA 3 5120 Ksym/sec 29800000 Hz 47.5 dBmV
    4 Locked ATDMA 4 5120 Ksym/sec 36300000 Hz 48.0 dBmV


  • Those levels are in a normal range for the modem, please let us know if you see the levels change or continue to have issues with it dropping and we can take a closer look.