Internet Keeps Dropping

[toolcubed]

@stuhome , curious if your issues are really due to OFDMA being enabled, or if you're experiencing the micro disconnections as a result of IPv6 problems like I am.  Is IPv6 enabled on your end?  If so, I'm wondering if you'd still have issues after disabling IPv6...

[stuhome]

@toolcubed How do I see that? because you're right, they are short disconnects of maybe a second which is enough of a disconnect to drop the connection to RDP and on a VOIP call where nothing is heard.

I am in Bridged mode to an DLINK DIR-882, and in the Internet page, IPv6 is set to Local Connectivity only.

[toolcubed]

I'm not familiar with D-Link products.  What do you mean by "Local Connectivity" only?  If you take a screenshot of your IPv6 settings and post here, we should be able to confirm whether or not it's enabled.  NOTE:  Make sure to block out your IP address before you post!!!

Edit:  Disregard.  I found the following D-Link support page (URL below).  Looks like "Local Connectivity Only" means IPv6 is, in fact, disabled (i.e. disabled on the WAN port).  So your issues don't appear to be related to IPv6.

https://support.dlink.com/mobile/main/mfaq.aspx?f=fy1VN6dQO2jDhMHqXF6fqQ%3D%3D

[stuhome]

@toolcubed

Thanks for looking in to it, this morning seems better, I've done a full reboot of the entire system, all switches, modem and router.  We shall see how it goes... Will report back later if my micro-disconnects are resolved.

Can anyone explain to me why my signal levels constantly fluctuate?  Yesterday my levels were all around -0.5 to +1dbmV, when this all kicked off with OFDMA, they were in the high +6 to +8, at one point they were +13 to +15 when the Line Amplifier broke, but today after the reboot they're now even lower and are sitting at -1 to -3.099dbmV.

@Datalink  Do you know hat would cause this to fluctuate so much?  I understand temperature can affect resistance on the line but not to this degree surely?  <cue the "Don't call me Shirley" quotes>

Downstream Overview

Port ID	Frequency (MHz)	Modulation	Signal strength (dBmV)	Channel ID	Signal noise ratio (dB)
1	591000000	QAM256	-1.000	7	38.605
2	597000000	QAM256	-1.000	8	38.605
3	603000000	QAM256	-1.299	9	38.605
4	579000000	QAM256	-0.900	5	38.605
5	585000000	QAM256	-0.799	6	38.983
6	279000000	QAM256	-0.799	1	38.983
7	609000000	QAM256	-1.099	10	38.983
8	615000000	QAM256	-1.200	11	38.605
9	621000000	QAM256	-1.200	12	38.983
10	633000000	QAM256	-1.599	13	38.983
11	639000000	QAM256	-1.599	14	38.605
12	645000000	QAM256	-1.299	15	38.605
13	651000000	QAM256	-1.400	16	38.605
14	657000000	QAM256	-1.500	17	38.983
15	663000000	QAM256	-1.700	18	38.605
16	669000000	QAM256	-1.599	19	38.983
17	675000000	QAM256	-1.799	20	38.983
18	681000000	QAM256	-1.799	21	38.605
19	687000000	QAM256	-1.700	22	38.983
20	693000000	QAM256	-1.500	23	38.983
21	699000000	QAM256	-1.299	24	38.605
22	705000000	QAM256	-1.299	25	38.605
23	711000000	QAM256	-0.900	26	38.605
24	717000000	QAM256	-1.000	27	38.605
25	723000000	QAM256	-0.700	28	38.983
26	825000000	QAM256	-2.700	29	37.636
27	831000000	QAM256	-2.299	30	37.636
28	837000000	QAM256	-2.500	31	37.636
29	843000000	QAM256	-2.700	32	37.636
30	849000000	QAM256	-2.599	2	37.636
31	855000000	QAM256	-3.000	3	37.636
32	861000000	QAM256	-3.099	4	37.355

OFDM Downstream Overview

Receiver	FFT type	Subcarr 0 Frequency(MHz)	PLC locked	NCP locked	MDC1 locked	PLC power(dBmv)
0	NA	NA	NO	NO	NO	NA
1	4K	275600000	YES	YES	YES	0.299999

Upstream Overview

Port ID	Frequency (MHz)	Modulation	Signal strength (dBmV)	Channel ID	Bandwidth
1	38700000	64QAM	44.520	8	6400000
2	21100000	64QAM	43.510	5	3200000
3	32300000	64QAM	44.520	7	6400000
4	25900000	64QAM	44.520	6	6400000
5	0	QAM_NONE	-	---	1600000
6	0	QAM_NONE	-	---	1600000
7	0	QAM_NONE	-	---	1600000
8	0	QAM_NONE	-	---	1600000

OFDM/OFDMA Overview

Channel Index	State	lin Digital Att	Digital Att	BW (sc's*fft)	Report Power	Report Power1_6	FFT Size
0	OPERATE	0.1899	11.5220	9.6000	50.2815	42.5000	2K
1	DISABLED	0.0000	0.0000	0.0000	0.0000	0.0000	2K

[alfajina]

Just got the first disconnection since OFDMA was enabled again, at 2:25 am.

Same as before, I can hear people talk to me, they cannot hear me.

I guess I will call rogers tomorrow.

[Geezup]

the reason for the internet dropping is who ever installed your modem probably put a staple through the coax cable.

[dazzler1234]

I've been having the same micro disconnect issues for the last week or so. I have Team calls loose audio randomly and frequent disconnection. Contacted Rogers and they indicated there were no problems on their end and had me remove the modem from bridge mode to deploy monitoring. My DOCSIS stats are below. Will appreciate if anyone can guide me on how to resolve.

Downstream Overview

Port ID	Frequency (MHz)	Modulation	Signal strength (dBmV)	Channel ID	Signal noise ratio (dB)
1	591000000	QAM256	2.599	7	38.983
2	597000000	QAM256	2.599	8	37.636
3	603000000	QAM256	2.900	9	35.779
4	579000000	QAM256	2.700	5	35.083
5	585000000	QAM256	2.700	6	36.609
6	279000000	QAM256	-2.099	1	36.386
7	609000000	QAM256	2.799	10	35.779
8	615000000	QAM256	3.400	11	37.636
9	621000000	QAM256	3.400	12	38.605
10	633000000	QAM256	3.599	13	35.595
11	639000000	QAM256	3.500	14	35.779
12	645000000	QAM256	3.200	15	37.355
13	651000000	QAM256	3.299	16	37.636
14	657000000	QAM256	3.500	17	35.779
15	663000000	QAM256	3.200	18	35.595
16	669000000	QAM256	3.200	19	36.386
17	675000000	QAM256	4.199	20	37.355
18	681000000	QAM256	4.400	21	36.386
19	687000000	QAM256	4.300	22	35.595
20	693000000	QAM256	4.199	23	35.779
21	699000000	QAM256	3.900	24	37.355
22	705000000	QAM256	4.000	25	37.355
23	711000000	QAM256	3.799	26	35.779
24	717000000	QAM256	3.599	27	34.925
25	723000000	QAM256	3.299	28	35.595
26	825000000	QAM256	4.099	29	35.595
27	831000000	QAM256	4.099	30	36.386
28	837000000	QAM256	4.000	31	37.636
29	843000000	QAM256	4.599	32	37.355
30	849000000	QAM256	4.800	2	35.779
31	855000000	QAM256	4.400	3	35.595
32	861000000	QAM256	3.599	4	36.386

OFDM Downstream Overview

Receiver	FFT type	Subcarr 0 Frequency(MHz)	PLC locked	NCP locked	MDC1 locked	PLC power(dBmv)
0	NA	NA	NO	NO	NO	NA
1	4K	275600000	YES	YES	YES	-1.099998

Upstream Overview

Port ID	Frequency (MHz)	Modulation	Signal strength (dBmV)	Channel ID	Bandwidth
1	25900000	64QAM	41.270	2	6400000
2	38700000	64QAM	40.020	4	6400000
3	32300000	64QAM	40.020	3	6400000
4	21100000	64QAM	43.510	1	3200000
5	0	QAM_NONE	-	---	1600000
6	0	QAM_NONE	-	---	1600000
7	0	QAM_NONE	-	---	1600000
8	0	QAM_NONE	-	---	1600000

OFDM/OFDMA Overview

Channel Index	State	lin Digital Att	Digital Att	BW (sc's*fft)	Report Power	Report Power1_6	FFT Size
0	DISABLED	0.0000	0.0000	0.0000	0.0000	0.0000	2K
1	DISABLED	0.0000	0.0000	0.0000	0.0000	0.0000	2K

[carolynfs]

I had the identical problem including varying advice from 8 different technicians.  The only thing that eliminated the problem for me was connecting my laptop via ethernet cable to the modem.  I hope that this will be feasible for you.