Upstream Channel Bonding Issues

Question

Hi all,

I'm having some connectivity issues with my Netgear C3000 Gateway and am hoping folks may be able to assist me with troubleshooting. I'm having generally awful wifi connectivity and since we're now in a work-from-home world where my whole household is on Zoom all the time, this is a huge issue.

Currently, the upstream light is almost always flashing on the gateway, as well as the wifi and 2.4GHz lights as well. From looking at the router settings, it seems like I'm only getting a partial connection upstream. Any suggestions on how to fix this would be greatly appreciated!

I'm also not particularly familiar with how the power levels for downstream should be - so if anyone can verify for me if those are good or may be a sign of an additional issue, I'd appreciate it.

Here's what my gateway is saying:

Startup Procedure

Procedure	Status	Comment
Acquire Downstream Channel	601750000 Hz	Locked
Connectivity State	OK	Operational
Boot State	OK	Operational
Security	Enabled	BPI+
IP Provisioning Mode	IPv6 Only	ipv6Only(1)

Downstream Bonded Channels

Channel	Lock Status	Modulation	Channel ID	Frequency	Power	SNR	Correctables	Uncorrectables
1	Locked	QAM256	25	601750000 Hz	9.5 dBmV	41.3 dB	139	108
2	Locked	QAM256	26	607750000 Hz	10.4 dBmV	41.8 dB	64	36
3	Locked	QAM256	27	613750000 Hz	9.7 dBmV	41.4 dB	95	7
4	Locked	QAM256	28	619750000 Hz	9.8 dBmV	41.3 dB	71	26
5	Locked	QAM256	29	625750000 Hz	10.1 dBmV	41.4 dB	77	76
6	Locked	QAM256	30	631750000 Hz	9.8 dBmV	41.4 dB	126	63
7	Locked	QAM256	31	637750000 Hz	9.8 dBmV	41.4 dB	87	2
8	Locked	QAM256	32	643750000 Hz	9.8 dBmV	41.4 dB	95	124

Upstream Bonded Channels (Partial Service)

Channel	Lock Status	US Channel Type	Channel ID	Symbol Rate	Frequency	Power
1	Locked	ATDMA	1	5120 Ksym/sec	36500000 Hz	44.2 dBmV
2	Not Locked	Unknown	2	0 Ksym/sec	30100000 Hz	0.0 dBmV
3	Not Locked	Unknown	3	0 Ksym/sec	23700000 Hz	0.0 dBmV
4	Not Locked	Unknown	0	0 Ksym/sec	0 Hz	0.0 dBmV

EG · Answer

Have you tried power-cycling the device lately ?

ziperof · Answer

Yes, I've tried power cycling it twice tonight already. I also noticed that the previous tenant had actually used a splitter on the coaxial cable that I was using so I undid the split and now have the modem plugged directly into the main coaxial cable.

It changed the power readings I'm getting for downstream, but nothing for upstream. Here's the updated connection info.

Downstream Bonded Channels

Channel	Lock Status	Modulation	Channel ID	Frequency	Power	SNR	Correctables	Uncorrectables
1	Locked	QAM256	33	649750000 Hz	12.6 dBmV	41.3 dB	0	0
2	Locked	QAM256	34	655750000 Hz	12.5 dBmV	40.8 dB	0	0
3	Locked	QAM256	35	661750000 Hz	12.4 dBmV	40.9 dB	1	0
4	Locked	QAM256	36	667750000 Hz	13.1 dBmV	41.3 dB	0	0
5	Locked	QAM256	37	673750000 Hz	12.6 dBmV	40.9 dB	0	0
6	Locked	QAM256	38	679750000 Hz	12.3 dBmV	40.9 dB	0	0
7	Locked	QAM256	39	685750000 Hz	12.6 dBmV	40.7 dB	0	0
8	Locked	QAM256	40	691750000 Hz	12.3 dBmV	40.7 dB	0	0

Upstream Bonded Channels (Partial Service)

Channel	Lock Status	US Channel Type	Channel ID	Symbol Rate	Frequency	Power
1	Locked	ATDMA	1	5120 Ksym/sec	36500000 Hz	39.3 dBmV
2	Not Locked	Unknown	2	0 Ksym/sec	30100000 Hz	0.0 dBmV
3	Not Locked	Unknown	3	0 Ksym/sec	23700000 Hz	0.0 dBmV
4	Not Locked	Unknown	0	0 Ksym/sec	0 Hz	0.0 dBmV

Your Home Network

ziperof

Upstream Channel Bonding Issues

Responses

EG

ziperof

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