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Cable Modem issue Arris Surfboard SB6190

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Cable Modem issue Arris Surfboard SB6190

Hi,

 

I have had a lot of issues with my Arris SB6190 lately dropping the internet connection.  Sometimes it helps to do a reboot other times it doesn't.   I did a factory reset of the modem. That didn't seem to help right away but the modem is currently working now.  I am just afraid it is going to drop the internet again.  I had issues like this with an older cheap cable modem and I replaced it with this one which has worked great with few issues for at least the last year. 

 

One thing I noticed checking connections is that on the outside of my house I have a cable with a coupler joining the two cables together.  I tried to push the cables together better.  Wondering if the recent cold weather could have caused some issues with that connection.

 

See status details below.  Please let me know if you see anything that is really out of wack.  Thanks.

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Status

The statuses listed show the connection state of the cable modem. They are used by your service provider to evaluate the operation of the cable modem.

 
Startup Procedure
Procedure Status Comment
Acquire Downstream Channel   Locked
Connectivity State OK Operational
Boot State OK Operational
Configuration File OK  
Security Enabled BPI+
DOCSIS Network Access Enabled Allowed  

 
Downstream Bonded Channels
Channel Lock Status Modulation Channel ID Frequency Power SNR Corrected Uncorrectables
1 Locked 256QAM 17 591.00 MHz -3.40 dBmV 38.98 dB 1978 1239
2 Locked 256QAM 1 483.00 MHz -1.10 dBmV 40.95 dB 11 0
3 Locked 256QAM 2 489.00 MHz -0.90 dBmV 40.37 dB 8 0
4 Locked 256QAM 3 495.00 MHz -1.00 dBmV 40.37 dB 7 0
5 Locked 256QAM 4 507.00 MHz -0.80 dBmV 40.37 dB 0 0
6 Locked 256QAM 5 513.00 MHz -1.10 dBmV 38.98 dB 0 0
7 Locked 256QAM 6 519.00 MHz -0.40 dBmV 40.37 dB 0 0
8 Locked 256QAM 7 525.00 MHz 0.00 dBmV 40.37 dB 0 0
9 Locked 256QAM 8 531.00 MHz 0.00 dBmV 40.95 dB 4 0
10 Locked 256QAM 9 543.00 MHz -0.90 dBmV 38.98 dB 0 0
11 Locked 256QAM 10 549.00 MHz -0.70 dBmV 38.98 dB 1 0
12 Locked 256QAM 11 555.00 MHz -0.50 dBmV 40.37 dB 1 0
13 Locked 256QAM 12 561.00 MHz -0.60 dBmV 40.37 dB 10 0
14 Locked 256QAM 13 567.00 MHz -1.80 dBmV 38.61 dB 0 0
15 Locked 256QAM 14 573.00 MHz -2.00 dBmV 40.37 dB 0 0
16 Locked 256QAM 15 579.00 MHz -1.80 dBmV 40.37 dB 0 0
17 Locked 256QAM 16 585.00 MHz -1.80 dBmV 40.37 dB 1 0
18 Locked 256QAM 18 597.00 MHz -3.60 dBmV 38.98 dB 0 0
19 Locked 256QAM 19 603.00 MHz -3.10 dBmV 38.98 dB 2 0
20 Locked 256QAM 20 609.00 MHz -2.40 dBmV 38.98 dB 0 0
21 Locked 256QAM 21 615.00 MHz -2.40 dBmV 40.37 dB 0 0
22 Locked 256QAM 22 621.00 MHz -3.00 dBmV 38.98 dB 0 0
23 Locked 256QAM 23 627.00 MHz -3.80 dBmV 38.61 dB 1 0
24 Locked 256QAM 24 633.00 MHz -4.00 dBmV 38.98 dB 0 0
25 Locked 256QAM 25 639.00 MHz -4.20 dBmV 38.90 dB 0 0
26 Locked 256QAM 26 645.00 MHz -4.80 dBmV 38.90 dB 1 0
27 Locked 256QAM 27 651.00 MHz -5.40 dBmV 38.90 dB 1 0
28 Locked 256QAM 28 657.00 MHz -5.60 dBmV 38.60 dB 0 0
29 Locked 256QAM 29 663.00 MHz -6.10 dBmV 38.60 dB 2 0
30 Locked 256QAM 30 669.00 MHz -5.30 dBmV 38.60 dB 3 0
31 Locked 256QAM 31 675.00 MHz -5.40 dBmV 38.60 dB 0 0
32 Locked 256QAM 32 681.00 MHz -6.10 dBmV 38.20 dB 7 0

 
Upstream Bonded Channels
Channel Lock Status US Channel Type Channel ID Symbol Rate Frequency Power
2 Locked ATDMA 4 5120 kSym/s 23.70 MHz 57.00 dBmV

 

 

 

 

 

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Diamond Problem Solver

Re: Cable Modem issue Arris Surfboard SB6190

You only have 1 out of a possible 3 or 4 upstream channels. And the one you have is way out of spec. Do you have extra splitters that you can remove? It may be that coupler you spotted is corroded, and you may have to have a tech out. Your docsis channels are also gradually losing signal as the frequencies get higher

I am a Retired Official Comcast Employee
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