My Arris SB8200 Showing Green Downstream light all of a sudden

All,

Yesterday I noticed that all my modem lights are green (including my downstream light).

Before, downstream light used to be blue (suggesting that it was connected to DOCSIS 3.1.

I'm not sure why all of a sudden it shows green light. I try re-starting the modem. When it restarts, downstream light will show blue, but will only last for about 2 to 5 minutes, then reverts back to green light.

I have XTREME Pro service with up to 600MB/s down. I do not have any issues with download and upload speeds as I get consistent around 700 UP and 23 DOWN.

Any suggestions as to why my modem does not show the blue downstream light anymore?

Responses

puch96

Frequent Visitor

•

10 Messages

4 years ago

Downstream Bonded Channels

Channel ID	Lock Status	Modulation	Frequency	Power	SNR/MER	Corrected	Uncorrectables
42	Locked	QAM256	405000000 Hz	2.0 dBmV	41.1 dB	0	0
1	Locked	QAM256	483000000 Hz	1.5 dBmV	41.1 dB	0	0
2	Locked	QAM256	489000000 Hz	1.4 dBmV	41.1 dB	0	0
3	Locked	QAM256	495000000 Hz	1.5 dBmV	41.2 dB	0	0
4	Locked	QAM256	501000000 Hz	1.5 dBmV	41.1 dB	0	0
5	Locked	QAM256	507000000 Hz	1.2 dBmV	41.1 dB	0	0
6	Locked	QAM256	513000000 Hz	1.1 dBmV	41.0 dB	0	0
7	Locked	QAM256	519000000 Hz	0.8 dBmV	41.0 dB	0	0
8	Locked	QAM256	525000000 Hz	0.8 dBmV	41.0 dB	0	0
9	Locked	QAM256	531000000 Hz	0.9 dBmV	41.0 dB	0	0
10	Locked	QAM256	537000000 Hz	0.8 dBmV	40.9 dB	0	0
11	Locked	QAM256	543000000 Hz	0.7 dBmV	40.9 dB	0	0
12	Locked	QAM256	549000000 Hz	0.5 dBmV	40.8 dB	0	0
13	Locked	QAM256	555000000 Hz	0.5 dBmV	40.7 dB	0	0
14	Locked	QAM256	561000000 Hz	0.5 dBmV	40.8 dB	0	0
15	Locked	QAM256	567000000 Hz	0.4 dBmV	40.6 dB	0	0
16	Locked	QAM256	573000000 Hz	0.2 dBmV	40.6 dB	0	0
17	Locked	QAM256	579000000 Hz	0.0 dBmV	40.6 dB	0	0
18	Locked	QAM256	585000000 Hz	-0.4 dBmV	40.5 dB	0	0
19	Locked	QAM256	591000000 Hz	-0.6 dBmV	40.4 dB	0	0
33	Locked	QAM256	459000000 Hz	1.2 dBmV	41.0 dB	0	0
34	Locked	QAM256	465000000 Hz	1.4 dBmV	41.1 dB	0	0
35	Locked	QAM256	471000000 Hz	1.5 dBmV	41.1 dB	0	0
36	Locked	QAM256	477000000 Hz	1.6 dBmV	41.1 dB	0	0
37	Locked	Other	690000000 Hz	1.1 dBmV	39.2 dB	529686214	21
38	Not Locked	QAM256	0 Hz	0.0 dBmV	41.1 dB	0	0
39	Locked	QAM256	435000000 Hz	1.8 dBmV	41.3 dB	0	0
40	Locked	QAM256	441000000 Hz	1.7 dBmV	41.1 dB	0	0
41	Locked	QAM256	447000000 Hz	1.3 dBmV	41.1 dB	0	0
43	Locked	QAM256	453000000 Hz	1.3 dBmV	41.3 dB	0	0
44	Locked	QAM256	411000000 Hz	2.1 dBmV	41.3 dB	0	0
45	Locked	QAM256	417000000 Hz	2.1 dBmV	41.0 dB	0	0

Upstream Bonded Channels

Channel	Channel ID	Lock Status	US Channel Type	Frequency	Width	Power
1	1	Locked	SC-QAM Upstream	35600000 Hz	6400000 Hz	45.0 dBmV
2	2	Locked	SC-QAM Upstream	29200000 Hz	6400000 Hz	44.0 dBmV
3	3	Locked	SC-QAM Upstream	22800000 Hz	6400000 Hz	44.0 dBmV
4	4	Locked	SC-QAM Upstream	16400000 Hz	6400000 Hz	43.0 dBmV
5	5	Locked	SC-QAM Upstream	40400000 Hz	3200000 Hz	44.0 dBmV

Current System Time: Wed Jan 27 10:57:30 2021

Gambit66

Problem Solver

•

341 Messages

4 years ago

@puch96 wrote:
All,
Yesterday I noticed that all my modem lights are green (including my downstream light).
Before, downstream light used to be blue (suggesting that it was connected to DOCSIS 3.1.

I'm not sure why all of a sudden it shows green light. I try re-starting the modem. When it restarts, downstream light will show blue, but will only last for about 2 to 5 minutes, then reverts back to green light.
I have XTREME Pro service with up to 600MB/s down. I do not have any issues with download and upload speeds as I get consistent around 700 UP and 23 DOWN.

Any suggestions as to why my modem does not show the blue downstream light anymore?

Blue is DOCSIS 3.1, Green is DOCSIS 3.0 I believe. If its working, let it bump!

EG

Expert

•

110K Messages

4 years ago

What do the modem's signal stats look like ? Try getting them here; http://192.168.100.1

Please post the *Downstream Power Level*, the *Upstream Power Level*, and the *SNR* (Signal to Noise Ratio) numbers.

puch96

Frequent Visitor

•

10 Messages

4 years ago

Yes. I know. Buy I am wondering if anyone knows why it went from blue to green since yesterday.

EG

Expert

•

110K Messages

4 years ago

Hmmm... That's strange because the DOCSIS 3.1 channel shown below is indeed locked in. It should remain being blue. Perhaps it's just a glitch.

Locked

Other

690000000 Hz

1.1 dBmV

39.2 dB

529686214

puch96

Frequent Visitor

•

10 Messages

4 years ago

Yes. That is strange. I rebooted the modem again and the blue downstream came back on and it stayed on so far........

I'll keep watching it...

Maybe Comcast was performing some service updates in my area or something....??.......

puch96

Frequent Visitor

•

10 Messages

4 years ago

hmmm... I just noticed my downstream light went back to green...

EG

Expert

•

110K Messages

4 years ago

I wouldn't sweat it as long as everything is working properly and that *Other* DOCSIS 3.1 channel is being shown as "locked".

sgbradley

New Poster

•

1 Message

4 years ago

I have the same situation, the data transfer speeds are fine, after rebooting the modem the downstream is blue and then it turns green. I’d like to know what Comcast changed and why. This was a recent change. I plan to talk to me of their service technicians when I see one in the field (a real one, not an install contractor) and try to get a real answer. I know phone technical support from the Philippines or wherever won’t be any help.

Andyr1

Gold Problem Solver

•

8K Messages

4 years ago

Comcast started rolling out a firmware update around Jan 26 or so. Some reported an odd error in the event log. It's possible the green light may be a new bug telling you it either has lost OFDM data, or briefly lost it but forgot to reset the light.

https://www.dslreports.com/forum/r33014606-Firmware-Config-File-Rejected

Nobbler

New Poster

•

1 Message

4 years ago

It is indeed buggy. If I loosen the coax to the point of creating errors, the light turns blue again and stays that way until it decides it's easier being green.

Your Home Network

puch96

My Arris SB8200 Showing Green Downstream light all of a sudden

puch96

Gambit66

EG

puch96

EG

puch96

puch96

EG

sgbradley

Andyr1

Nobbler

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