C6250 Keeps Dropping Connection

Question

I've been having problems with my router for the last couple months. I am constantly (on the order of 15+ times a day) losing my Upstream connection, and when I check my dashboard, I see that 1 or more channels are no longer locked. I've done every bit of troubleshooting I can think of, including all the various suggestions here. I had the Spectrum tech out today and he checked the line, said that it's good up to the house.

One thing I've been noticing (I started looking after I saw where someone had pointed it out on the board) is that, when 1 or more Upstream channels come unlocked, the power on the rest spikes up above 50 dBmV. Currently all four channels are locked and the power on each is 42.5 dBmV or thereabouts. Here's a snapshot of the current connection info. I rebooted the router about 15 minutes ago.

Any suggestions or help would be greatly appreciated. And any additional info needed, I'll be happy to provide.

Channel	Lock Status	Modulation	Channel ID	Frequency	Power	SNR	Correctables	Uncorrectables
1	Locked	QAM256	1	345000000 Hz	4.2 dBmV	46.5 dB	24	116
2	Locked	QAM256	2	351000000 Hz	3.9 dBmV	46.1 dB	22	83
3	Locked	QAM256	3	357000000 Hz	4 dBmV	46.2 dB	26	79
4	Locked	QAM256	4	363000000 Hz	4 dBmV	46.3 dB	18	94
5	Locked	QAM256	6	375000000 Hz	4.1 dBmV	46.3 dB	24	100
6	Locked	QAM256	7	381000000 Hz	3.7 dBmV	45.8 dB	16	120
7	Locked	QAM256	9	393000000 Hz	4 dBmV	46.2 dB	25	82
8	Locked	QAM256	10	399000000 Hz	3.5 dBmV	45.6 dB	12	95
9	Locked	QAM256	21	483000000 Hz	4.4 dBmV	45.6 dB	37	146
10	Locked	QAM256	22	489000000 Hz	4.3 dBmV	45.4 dB	30	102
11	Locked	QAM256	27	519000000 Hz	4.1 dBmV	44.9 dB	23	80
12	Locked	QAM256	28	525000000 Hz	3.9 dBmV	44.5 dB	25	96
13	Locked	QAM256	29	531000000 Hz	4.1 dBmV	44.5 dB	17	85
14	Locked	QAM256	30	537000000 Hz	2.9 dBmV	43.3 dB	24	114
15	Locked	QAM256	31	543000000 Hz	3.1 dBmV	43.5 dB	30	75
16	Locked	QAM256	32	549000000 Hz	3.9 dBmV	43.9 dB	22	82

Upstream Bonded Channels

Channel	Lock Status	US Channel Type	Channel ID	Symbol Rate	Frequency	Power
1	Locked	ATDMA	49	5120 Ksym/sec	17800000 Hz	42.2 dBmV
2	Locked	ATDMA	50	5120 Ksym/sec	24200000 Hz	42.7 dBmV
3	Locked	ATDMA	51	5120 Ksym/sec	30600000 Hz	42.5 dBmV
4	Locked	ATDMA	52	5120 Ksym/sec	37000000 Hz	42.5 dBmV

plemans · Answer

from the look of it you have line issues. But your logs help confirm that. Got a screen snip of the logs?&nbsp;
Start with removing any amplifiers, signal attenuators, or splitters from the coax. From there check the line for kinks, damage, moisture in the line. Check the connectors for improperly made ends, foil touching the copper coax line, loose connections, bad/old/cheap connectors, or corroded connections. Replace them if you do. If you can, simply connect the modem right where the coax comes into the home. This prevents wiring in the home from being the issue. And some ISP’s charge if the wiring issue is in the home. So this helps prevent this.

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C6250 Keeps Dropping Connection

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