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Frequent internet disconnects. Started Unicast Maintenance Ranging, No Response received, T3 timeout

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Frequent internet disconnects. Started Unicast Maintenance Ranging, No Response received, T3 timeout

As the title states, I am randomly losing internet connectivity rather frequently. Multiple times per day, connectivity drops for approximately 2-10 minutes. During this time, internet connectivity to external websites drops first, followed by connectivity to the modem.

 

The modem is a Netgear CM1000v2 modem, which is one of the xfinity approved modems with DOCSIS 3.1 for my gigabit internet package. Every time connectivity is lost, when I log into the modem and check the log, "Critical(3) Started Unicast Maintenance Ranging - No Response received - T3 time-out" is the most recent entry. The modem is connected to the coax outlet directly inside the house from where the coax from the pole enters the house. It is a direct connection, with no splitters, to the outside line.

 

In the process of troubleshooting, I have eliminated and removed all other devices from my network and plugged my laptop directly into the modem, and the problem still persists. Since COVID19, I have been working from home and this has been very annoying to keep getting dropped from meetings and calls.

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Expert

Re: Frequent internet disconnects. Started Unicast Maintenance Ranging, No Response received, T3 tim

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




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Re: Frequent internet disconnects. Started Unicast Maintenance Ranging, No Response received, T3 tim

Thank you for assisting. Here is what I have:

 

Downstream Bonded Channels
Channel		Lock Status	Modulation 	Channel ID 	Frequency 	Power 		SNR / MER 	Unerrored Codewords 	Correctable Codewords 	Uncorrectable Codewords
1		Locked		QAM256		17		531000000 Hz	6.0 dBmV	42.7 dB		1547106740		337			405
2		Locked		QAM256		10		483000000 Hz	6.5 dBmV	43.1 dB		1546102290		334			500
3		Locked		QAM256		11		489000000 Hz	6.6 dBmV	42.9 dB		1546086025		342			443
4		Locked		QAM256		12		495000000 Hz	6.6 dBmV	42.9 dB		1546109822		392			471
5		Locked		QAM256		13		507000000 Hz	6.5 dBmV	42.9 dB		1546114840		324			475
6		Locked		QAM256		14		513000000 Hz	6.5 dBmV	42.8 dB		1546118040		314			475
7		Locked		QAM256		15		519000000 Hz	6.1 dBmV	42.7 dB		1546121206		351			447
8		Locked		QAM256		16		525000000 Hz	6.1 dBmV	42.5 dB		1546125294		326			447
9		Locked		QAM256		18		537000000 Hz	5.9 dBmV	42.5 dB		1546134452		333			410
10		Locked		QAM256		19		543000000 Hz	6.0 dBmV	42.6 dB		1546139127		285			462
11		Locked		QAM256		20		549000000 Hz	6.0 dBmV	42.6 dB		1546141902		319			422
12		Locked		QAM256		21		555000000 Hz	5.9 dBmV	42.5 dB		1546145713		273			457
13		Locked		QAM256		22		561000000 Hz	6.0 dBmV	42.6 dB		1546149737		255			451
14		Locked		QAM256		23		567000000 Hz	5.9 dBmV	42.4 dB		1546153875		279			471
15		Locked		QAM256		24		573000000 Hz	5.9 dBmV	42.3 dB		1546157622		310			440
16		Locked		QAM256		25		579000000 Hz	6.1 dBmV	42.6 dB		1546161554		298			474
17		Locked		QAM256		26		585000000 Hz	6.1 dBmV	42.5 dB		1546173461		246			420
18		Locked		QAM256		27		591000000 Hz	6.3 dBmV	42.6 dB		1546161519		286			410
19		Locked		QAM256		28		597000000 Hz	5.9 dBmV	42.4 dB		1546160721		256			452
20		Locked		QAM256		30		603000000 Hz	6.0 dBmV	42.2 dB		1546149407		269			446
21		Locked		QAM256		31		609000000 Hz	5.8 dBmV	42.4 dB		1546155060		228			448
22		Locked		QAM256		32		615000000 Hz	5.8 dBmV	42.4 dB		1546159462		142			465
23		Locked		QAM256		33		621000000 Hz	6.2 dBmV	42.4 dB		1546163272		236			440
24		Locked		QAM256		34		627000000 Hz	6.3 dBmV	42.6 dB		1546166631		198			437
25		Locked		QAM256		35		633000000 Hz	6.3 dBmV	42.5 dB		1546171518		256			454
26		Locked		QAM256		36		639000000 Hz	6.4 dBmV	42.4 dB		1546174902		237			359
27		Locked		QAM256		37		645000000 Hz	6.6 dBmV	42.5 dB		1546178599		223			481
28		Locked		QAM256		38		651000000 Hz	6.6 dBmV	42.5 dB		1546182793		227			403
29		Locked		QAM256		39		657000000 Hz	6.5 dBmV	42.5 dB		1546184786		233			402
30		Locked		QAM256		40		663000000 Hz	6.6 dBmV	42.5 dB		1546188926		234			401
31		Locked		QAM256		41		669000000 Hz	6.3 dBmV	42.6 dB		1546189249		267			416
32		Not Locked	Unknown		0		0 Hz		0.0 dBmV	0.0 dB		0	                0			0
Upstream Bonded Channels
Channel 	Lock Status 	Modulation 	Channel ID 	Frequency 	 Power
1		Locked		ATDMA		1		17300000 Hz	 42.3 dBmV
2		Locked		ATDMA		2		23700000 Hz	 41.8 dBmV
3		Locked		ATDMA		3		30100000 Hz	 42.0 dBmV
4		Locked		ATDMA		4		36500000 Hz	 41.5 dBmV
5		Not Locked	Unknown		0		0 Hz		 0.0 dBmV
6		Not Locked	Unknown		0		0 Hz		 0.0 dBmV
7		Not Locked	Unknown		0		0 Hz		 0.0 dBmV
8		Not Locked	Unknown		0		0 Hz		 0.0 dBmV
Downstream OFDM Channels
Channel 	Lock Status 	Modulation / Profile ID 	Channel ID 	Frequency 	Power 		SNR / MER 	Active Subcarrier Number Range 	Unerrored Codewords 	Correctable Codewords 	Uncorrectable Codewords
1		Locked		0, 1, 2, 3			29		690000000 Hz	7.0 dBmV	41.8 dB		1108 ~ 2987			55983210		35500449		3
2		Not Locked	0				0		0 Hz		3.7 dBmV	0.0 dB		0 ~ 4095			0			0			0
Upstream OFDMA Channels
Channel 	Lock Status 	Modulation / Profile ID 	Channel ID 	Frequency 	Power
1		Not Locked	Unknown				0		0 Hz		0 dBmV
2		Not Locked	Unknown				0		0 Hz		0 dBmV

 

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Expert

Re: Frequent internet disconnects. Started Unicast Maintenance Ranging, No Response received, T3 tim

The signal stats are very good. Please post the error log entries in their entirety.



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Re: Frequent internet disconnects. Started Unicast Maintenance Ranging, No Response received, T3 tim

Here is the modem's error log from yesterday evening. (MAC address redacted)

Time			Priority	Description
2020-08-22, 18:10:48	Critical (3)	Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=xx:xx:xx:xx:xx:xx;CMTS-MAC=00:01:5c:71:e6:6d;CM-QOS=1.1;CM-VER=3.1;
2020-08-22, 18:04:05	Notice (6)	CM-STATUS message sent. Event Type Code: 24; Chan ID: 29; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 3.;CM-MAC=xx:xx:xx:xx:xx:xx;CMTS-MAC=00:01:5c:71:e6:6d;CM-QOS=1.1;CM-VER=3.1;
2020-08-22, 18:03:37	Notice (6)	CM-STATUS message sent. Event Type Code: 16; Chan ID: 29; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 3.;CM-MAC=xx:xx:xx:xx:xx:xx;CMTS-MAC=00:01:5c:71:e6:6d;CM-QOS=1.1;CM-VER=3.1;
2020-08-22, 18:03:33	Warning (5)	Dynamic Range Window violation
2020-08-22, 18:03:33	Warning (5)	RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=xx:xx:xx:xx:xx:xx;CMTS-MAC=00:01:5c:71:e6:6d;CM-QOS=1.1;CM-VER=3.1;
2020-08-22, 18:03:33	Warning (5)	Dynamic Range Window violation
2020-08-22, 18:03:33	Warning (5)	RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=xx:xx:xx:xx:xx:xx;CMTS-MAC=00:01:5c:71:e6:6d;CM-QOS=1.1;CM-VER=3.1;
2020-08-22, 18:03:33	Warning (5)	Dynamic Range Window violation
2020-08-22, 18:03:33	Warning (5)	RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=xx:xx:xx:xx:xx:xx;CMTS-MAC=00:01:5c:71:e6:6d;CM-QOS=1.1;CM-VER=3.1;
2020-08-22, 18:03:33	Warning (5)	Dynamic Range Window violation
2020-08-22, 18:03:33	Warning (5)	RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=xx:xx:xx:xx:xx:xx;CMTS-MAC=00:01:5c:71:e6:6d;CM-QOS=1.1;CM-VER=3.1;
2020-08-22, 11:59:47	Notice (6)	DS profile assignment change. DS Chan ID: 32; Previous Profile: ; New Profile: 1 2 3.;CM-MAC=xx:xx:xx:xx:xx:xx;CMTS-MAC=00:01:5c:71:e6:6d;CM-QOS=1.1;CM-VER=3.1;
2020-08-22, 11:59:37	Notice (6)	Honoring MDD; IP provisioning mode = IPv6
2020-08-22, 11:59:26	Critical (3)	No Ranging Response received - T3 time-outCM-MAC=xx:xx:xx:xx:xx:xx;CMTS-MAC=00:01:5c:71:e6:6d;CM-QOS=1.1;CM-VER=3.1;
2020-08-22, 11:59:15	Critical (3)	Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=xx:xx:xx:xx:xx:xx;CMTS-MAC=00:01:5c:71:e6:6d;CM-QOS=1.1;CM-VER=3.1;
2020-08-22, 11:59:00	Critical (3)	No Ranging Response received - T3 time-out;CM-MAC=xx:xx:xx:xx:xx:xx;CMTS-MAC=00:01:5c:71:e6:6d;CM-QOS=1.1;CM-VER=3.1;
2020-08-22, 11:58:59	Critical (3)	Received Response to Broadcast Maintenance Request But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=xx:xx:xx:xx:xx:xx;CMTS-MAC=00:01:5c:71:e6:6d;CM-QOS=1.1;CM-VER=3.1;
2020-08-22, 11:58:57	Critical (3)	No Ranging Response received - T3 time-out;CM-MAC=xx:xx:xx:xx:xx:xx;CMTS-MAC=00:01:5c:71:e6:6d;CM-QOS=1.1;CM-VER=3.1;
2020-08-22, 11:58:57	Notice (6)	CM-STATUS message sent. Event Type Code: 6; Chan ID: 1; DSID: NIA; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A;CM-MAC=xx:xx:xx:xx:xx:xx;CMTS-MAC=00:01:5c:71:e6:6d;CM-QOS=1.1;CM-VER=3.1;
2020-08-22, 11:58:56	Critical (3)	Received Response to Broadcast Maintenance Request But no Unicast Maintenance opportunities received - T4 time outCM-MAC=xx:xx:xx:xx:xx:xx;CMTS-MAC=00:01:5c:71:e6:6d;CM-QOS=1.1;CM-VER=3.1;
2020-08-22, 11:54:15	Critical (3)	Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=xx:xx:xx:xx:xx:xx;CMTS-MAC=00:01:5c:71:e6:6d;CM-QOS=1.1;CM-VER=3.1;
2020-08-22, 11:42:44	Warning (5)	Dynamic Range Window violation
2020-08-22, 11:42:44	Warning (5)	RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=xx:xx:xx:xx:xx:xx;CMTS-MAC=00:01:5c:71:e6:6d;CM-QOS=1.1;CM-VER=3.1;
2020-08-22, 11:42:41	Notice (6)	DS profile assignment change. DS Chan ID: 32; Previous Profile: ; New Profile: 1 2 3.;CM-MAC=xx:xx:xx:xx:xx:xx;CMTS-MAC=00:01:5c:71:e6:6d;CM-QOS=1.1;CM-VER=3.1;
2020-08-22, 11:42:32	Notice (6)	Honoring MDD; IP provisioning mode = IPv6
2020-08-22, 11:42:17	Critical (3)	Received Response to Broadcast Maintenance Request But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=xx:xx:xx:xx:xx:xx;CMTS-MAC=00:01:5c:71:e6:6d;CM-QOS=1.1;CM-VER=3.1;
2020-08-22, 11:42:16	Critical (3)	No Ranging Response received - T3 time-out;CM-MAC=xx:xx:xx:xx:xx:xx;CMTS-MAC=00:01:5c:71:e6:6d;CM-QOS=1.1;CM-VER=3.1;

 And here is the error log from today as of now. (MAC address redacted)

Time			Priority	Description
2020-08-23, 13:13:44	Warning (5)	Dynamic Range Window violation
2020-08-23, 13:13:44	Warning (5)	RNG-RSP CCAP Commanded Power Exceeds Value Corresponding to the Top of the DRW;CM-MAC=xx:xx:xx:xx:xx:xx;CMTS-MAC=00:01:5c:71:e6:6d;CM-QOS=1.1;CM-VER=3.1;
2020-08-23, 13:12:29	Notice (6)	CM-STATUS message sent. Event Type Code: 24; Chan ID: 29; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 3.;CM-MAC=xx:xx:xx:xx:xx:xx;CMTS-MAC=00:01:5c:71:e6:6d;CM-QOS=1.1;CM-VER=3.1;
2020-08-23, 13:12:00	Notice (6)	CM-STATUS message sent. Event Type Code: 16; Chan ID: 29; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 3.;CM-MAC=xx:xx:xx:xx:xx:xx;CMTS-MAC=00:01:5c:71:e6:6d;CM-QOS=1.1;CM-VER=3.1;
2020-08-23, 13:11:49	Warning (5)	Dynamic Range Window violation
2020-08-23, 13:11:49	Warning (5)	RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=xx:xx:xx:xx:xx:xx;CMTS-MAC=00:01:5c:71:e6:6d;CM-QOS=1.1;CM-VER=3.1;
2020-08-23, 13:11:49	Warning (5)	Dynamic Range Window violation
2020-08-23, 13:11:49	Warning (5)	RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=xx:xx:xx:xx:xx:xx;CMTS-MAC=00:01:5c:71:e6:6d;CM-QOS=1.1;CM-VER=3.1;
2020-08-23, 13:11:49	Warning (5)	Dynamic Range Window violation
2020-08-23, 13:11:49	Warning (5)	RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=xx:xx:xx:xx:xx:xx;CMTS-MAC=00:01:5c:71:e6:6d;CM-QOS=1.1;CM-VER=3.1;
2020-08-23, 11:30:36	Critical (3)	Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=xx:xx:xx:xx:xx:xx;CMTS-MAC=00:01:5c:71:e6:6d;CM-QOS=1.1;CM-VER=3.1;
2020-08-23, 10:56:02	Warning (5)	Dynamic Range Window violation
2020-08-23, 10:56:02	Warning (5)	RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=xx:xx:xx:xx:xx:xx;CMTS-MAC=00:01:5c:71:e6:6d;CM-QOS=1.1;CM-VER=3.1;
2020-08-23, 10:56:02	Warning (5)	Dynamic Range Window violation
2020-08-23, 10:56:02	Warning (5)	RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=xx:xx:xx:xx:xx:xx;CMTS-MAC=00:01:5c:71:e6:6d;CM-QOS=1.1;CM-VER=3.1;
2020-08-23, 10:56:02	Warning (5)	Dynamic Range Window violation
2020-08-23, 10:56:02	Warning (5)	RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=xx:xx:xx:xx:xx:xx;CMTS-MAC=00:01:5c:71:e6:6d;CM-QOS=1.1;CM-VER=3.1;
2020-08-23, 10:56:02	Warning (5)	Dynamic Range Window violation
2020-08-23, 10:56:02	Warning (5)	RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=xx:xx:xx:xx:xx:xx;CMTS-MAC=00:01:5c:71:e6:6d;CM-QOS=1.1;CM-VER=3.1;
2020-08-23, 10:53:18	Critical (3)	Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=xx:xx:xx:xx:xx:xx;CMTS-MAC=00:01:5c:71:e6:6d;CM-QOS=1.1;CM-VER=3.1;
2020-08-23, 09:48:51	Notice (6)	CM-STATUS message sent. Event Type Code: 24; Chan ID: 29; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 3.;CM-MAC=xx:xx:xx:xx:xx:xx;CMTS-MAC=00:01:5c:71:e6:6d;CM-QOS=1.1;CM-VER=3.1;
2020-08-23, 09:48:24	Notice (6)	CM-STATUS message sent. Event Type Code: 16; Chan ID: 29; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 3.;CM-MAC=xx:xx:xx:xx:xx:xx;CMTS-MAC=00:01:5c:71:e6:6d;CM-QOS=1.1;CM-VER=3.1;
2020-08-23, 09:48:20	Warning (5)	Dynamic Range Window violation
2020-08-23, 09:48:20	Warning (5)	RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=xx:xx:xx:xx:xx:xx;CMTS-MAC=00:01:5c:71:e6:6d;CM-QOS=1.1;CM-VER=3.1;
2020-08-23, 09:48:20	Warning (5)	Dynamic Range Window violation
2020-08-23, 09:48:20	Warning (5)	RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=xx:xx:xx:xx:xx:xx;CMTS-MAC=00:01:5c:71:e6:6d;CM-QOS=1.1;CM-VER=3.1;
2020-08-23, 09:48:20	Warning (5)	Dynamic Range Window violation
2020-08-23, 09:48:20	Warning (5)	RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=xx:xx:xx:xx:xx:xx;CMTS-MAC=00:01:5c:71:e6:6d;CM-QOS=1.1;CM-VER=3.1;
2020-08-23, 09:48:20	Warning (5)	Dynamic Range Window violation
2020-08-23, 09:48:20	Warning (5)	RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=xx:xx:xx:xx:xx:xx;CMTS-MAC=00:01:5c:71:e6:6d;CM-QOS=1.1;CM-VER=3.1;
2020-08-23, 01:01:56	Critical (3)	Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=xx:xx:xx:xx:xx:xx;CMTS-MAC=00:01:5c:71:e6:6d;CM-QOS=1.1;CM-VER=3.1;
2020-08-23, 01:01:55	Warning (5)	Dynamic Range Window violation
2020-08-23, 01:01:55	Warning (5)	RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=xx:xx:xx:xx:xx:xx;CMTS-MAC=00:01:5c:71:e6:6d;CM-QOS=1.1;CM-VER=3.1;
2020-08-23, 01:01:55	Warning (5)	Dynamic Range Window violation
2020-08-23, 01:01:55	Warning (5)	RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=xx:xx:xx:xx:xx:xx;CMTS-MAC=00:01:5c:71:e6:6d;CM-QOS=1.1;CM-VER=3.1;
2020-08-23, 01:01:55	Warning (5)	Dynamic Range Window violation
2020-08-23, 01:01:55	Warning (5)	RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=xx:xx:xx:xx:xx:xx;CMTS-MAC=00:01:5c:71:e6:6d;CM-QOS=1.1;CM-VER=3.1;
2020-08-23, 01:01:55	Warning (5)	Dynamic Range Window violation
2020-08-23, 01:01:55	Warning (5)	RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=xx:xx:xx:xx:xx:xx;CMTS-MAC=00:01:5c:71:e6:6d;CM-QOS=1.1;CM-VER=3.1;
2020-08-23, 00:39:33	Notice (6)	DS profile assignment change. DS Chan ID: 32; Previous Profile: ; New Profile: 1 2 3.;CM-MAC=xx:xx:xx:xx:xx:xx;CMTS-MAC=00:01:5c:71:e6:6d;CM-QOS=1.1;CM-VER=3.1;
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Expert

Re: Frequent internet disconnects. Started Unicast Maintenance Ranging, No Response received, T3 tim

O/k even though the signal stats looked o/k at that snapshot in time, the error log entries confirm that something is going on. Perhaps there is noise ingress into the line(s) somewhere.

 

There are other signal stat figures that can't be read by the modem. They are the "Upstream Rx Power" (Upstream Receive Power Level), the "Upstream SNR Ch." (Upstream Signal To Noise Ratio), and the "Upstream ICFR" (In Channel Frequency Response). These are as equally important in diagnosing connectivity issues as are the modem's stats.


I'm going to escalate your issue to the Comcast corporate employees that are available to these boards. They can check the CMTS (Cable Modem Termination System) for any real time degradation and / or error reports, see your node / cable plant and modem health, and see whether or not everything is in the green zone. They can also see a history plot for the modem and poll for those upstream receive signal stats.

You should get a reply here in your topic. Good luck !



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Re: Frequent internet disconnects. Started Unicast Maintenance Ranging, No Response received, T3 tim

Alright well thank you very much. Your explanation and help is much appreciated!

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Re: Frequent internet disconnects. Started Unicast Maintenance Ranging, No Response received, T3 tim

Quite welcome !



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Official Employee

Re: Frequent internet disconnects. Started Unicast Maintenance Ranging, No Response received, T3 tim

Hello TandemPanda, thank you for taking the time to post your test results here. I'd be happy to look at my systems to help me better understand what's causing your frequent disconnects. To better assist you could you please send me a private message with your full name and account number by clicking on my name (ComcastAmir) and then click "Send a message"?


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Re: Frequent internet disconnects. Started Unicast Maintenance Ranging, No Response received, T3 tim

We have the exact same problem happening now. But our modem is a SB6141 DOCSIS 3.0 and I've done all the same troubleshooting. So frustrating with work and school from home.