CM1200 to Rax200 WAN aggregation slows down (requires reboot)

I have a CM1200 modem and RAX200 Router with WAN agreggation (2Gig). My internet speeds slow down to 25Mb after approx 24 hours. Rebooting the router fixes the issue for another 24 hours and then the...

tcmathews

Star

Aug 19, 2020

NVRSAWM3CMNG

I have both IPV6 and I have Comcast as my provider. My modem has been solid on connection, no reboots thus far. I am seeing some flucuation in speeds though. I average about 948Mbps Down usually with an upstream of 42Mbps. I am seeing speeds now from 583-804Mbps downstream. Upstream doesnt seem to be affected at the moment.

Startup Procedure

Procedure	Status	Comment
Acquire Downstream Channel	459000000 Hz	Locked
Connectivity State	OK	Operational
Boot State	OK	Operational
Security	Enabled	BPI+
IP Provisioning Mode	Honor MDD	honorMdd(4)

Downstream Bonded Channels

Channel	Lock Status	Modulation	Channel ID	Frequency	Power	SNR	Correctables	Uncorrectables
1	Locked	QAM256	25	459000000 Hz	2.3 dBmV	39.9 dB	0	0
2	Locked	QAM256	1	483000000 Hz	2.2 dBmV	40 dB	0	0
3	Locked	QAM256	2	489000000 Hz	2.5 dBmV	40.1 dB	0	0
4	Locked	QAM256	3	495000000 Hz	2.5 dBmV	40.1 dB	0	0
5	Locked	QAM256	4	501000000 Hz	2.6 dBmV	40.3 dB	0	0
6	Locked	QAM256	5	507000000 Hz	2.3 dBmV	40.1 dB	0	0
7	Locked	QAM256	6	513000000 Hz	2.4 dBmV	40.2 dB	0	0
8	Locked	QAM256	7	519000000 Hz	2.6 dBmV	40.4 dB	0	0
9	Locked	QAM256	8	525000000 Hz	2.3 dBmV	40.3 dB	0	0
10	Locked	QAM256	9	531000000 Hz	1.9 dBmV	40.2 dB	0	0
11	Locked	QAM256	10	537000000 Hz	2 dBmV	40.2 dB	0	0
12	Locked	QAM256	11	543000000 Hz	1.9 dBmV	40.1 dB	0	0
13	Locked	QAM256	12	549000000 Hz	1.8 dBmV	40.1 dB	0	0
14	Locked	QAM256	13	555000000 Hz	1.4 dBmV	40.1 dB	0	0
15	Locked	QAM256	14	561000000 Hz	1 dBmV	39.9 dB	0	0
16	Locked	QAM256	15	567000000 Hz	0.9 dBmV	39.6 dB	0	0
17	Locked	QAM256	16	573000000 Hz	0.3 dBmV	39.1 dB	0	0
18	Locked	QAM256	17	579000000 Hz	0 dBmV	39.1 dB	0	0
19	Locked	QAM256	18	585000000 Hz	1.3 dBmV	39.8 dB	0	0
20	Locked	QAM256	19	591000000 Hz	2.3 dBmV	40.2 dB	0	0
21	Locked	QAM256	20	597000000 Hz	2.2 dBmV	40 dB	0	0
22	Locked	QAM256	21	603000000 Hz	1.6 dBmV	39.9 dB	0	0
23	Locked	QAM256	22	609000000 Hz	1.7 dBmV	40.1 dB	0	0
24	Locked	QAM256	23	615000000 Hz	1.7 dBmV	40.1 dB	0	0
25	Locked	QAM256	24	621000000 Hz	1.8 dBmV	40 dB	0	0
26	Locked	QAM256	26	627000000 Hz	0.6 dBmV	39.3 dB	0	0
27	Locked	QAM256	27	633000000 Hz	0.1 dBmV	39.1 dB	0	0
28	Locked	QAM256	28	639000000 Hz	0.6 dBmV	39.4 dB	0	0
29	Locked	QAM256	34	465000000 Hz	2.4 dBmV	39.9 dB	0	0
30	Locked	QAM256	35	471000000 Hz	2.1 dBmV	39.9 dB	0	0
31	Locked	QAM256	36	477000000 Hz	1.8 dBmV	39.9 dB	0	0
32	Not Locked	Unknown	0	0 Hz	0.0 dBmV	0.0 dB	0	0

Upstream Bonded Channels

Channel	Lock Status	US Channel Type	Channel ID	Symbol Rate	Frequency	Power
1	Locked	ATDMA	1	5120 Ksym/sec	35600000 Hz	45.3 dBmV
2	Locked	ATDMA	2	5120 Ksym/sec	29200000 Hz	46 dBmV
3	Locked	ATDMA	3	5120 Ksym/sec	22800000 Hz	45 dBmV
4	Not Locked	Unknown	0	0 Ksym/sec	0 Hz	0.0 dBmV
5	Not Locked	Unknown	0	0 Ksym/sec	0 Hz	0.0 dBmV
6	Not Locked	Unknown	0	0 Ksym/sec	0 Hz	0.0 dBmV
7	Not Locked	Unknown	0	0 Ksym/sec	0 Hz	0.0 dBmV
8	Not Locked	Unknown	0	0 Ksym/sec	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	37	690000000 Hz	3.5 dBmV	40.3 dB	1228 ~ 2867	123093968	75599951	0
2	Not Locked	0	0	0 Hz	0 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	0	0	0 Hz	0 dBmV
2	Not Locked	0	0	0 Hz	0 dBmV

Extended Upstream Transmit Power

Enable Extended Upstream Transmit Power

Current System Time:Wed Aug 19 15:39:04 2020

System Up Time:10:05:23

dayjob

Guide

Aug 19, 2020

+ Points to tcmathews for getting someones attention at Comcast and getting this update rolled out! I got the update and my skepticism about such a large version jump was for nothing, because it is now V2.02.05 as of 2am ET. I have done nothing to modem nor router since update and have not tested LAG but everything appears exactly the same as before with the same errors in the logs but nothing broken.

I do not have the recently asked about "REG-RSP-MP" error and only the more typical "unrecognized OID;" and "No Ranging Response received - T3 time-out" and "SYNC Timing Synchronization failure".

I have comcast 1GB plan and get the same average (not accounting the pandemic performance impact that happens during biz hours these days) as the previous post of 948Mbps Down, 42Mbps Up.

Will test LAG when wife is not using the internet.

Topology
Virtuoso
Aug 19, 2020
tcmathews, were the speed statistics you shared in your prior post (message #103) obtained with link aggregation enabled?
tcmathews
Star
Aug 20, 2020
Topology

948Mbps Down usually with an upstream of 42Mbps prior to link aggregation. I am seeing speeds now from 583-804Mbps downstream. Upstream doesnt seem to be affected at the moment with link aggregation turned on since this morning around 6am EST. My power levels look good, but I know comcast has been tracing down FM noise in the node I am on from somewhere and not sur eif that has been truly resolved to date. My contact is still working on it though.
Shelby500GT_x
Tutor
Aug 20, 2020
I would assume the stats were with WAG on! if it fell to 1/2 speed some of the time after 10 hours then it looks like issue might not be solved but it still needs a lot of work. I don't have 1gb service, but I do have 300mb service and I get around 350+ about 80% of the time. Also it's always above 300 mb. It's very constant even thought severs are different. When I had WAG turned on it would fall after 15 to 20 hours of use. I wounder what the fix was and weather it will disconnect/ connect once a day or when speed drops?

i believe I will be getting a AUS RT-AX89X. It has dual 10G ports (10Gbase-T, 10G SFP+). The reviews have been good.

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CM1200 to Rax200 WAN aggregation slows down (requires reboot)