How to verify the modem is not the issue (BYOM) CM700

Question

We have been having internet issues.&nbsp; Total drops, streaming drops and buffering.&nbsp; Speed test are usually fine.&nbsp; Modem when I have checked seesm to be in the acceptible ranges.&nbsp;&nbsp;The ISP can see the modem logs and says the line is fine, but we get:Feb 11 2018 10:05:26Critical (3)Ranging Request Retries exhaustedFeb 11 2018 10:05:26Critical (3)Unicast Maintenance Ranging attempted - No response - Retries exhaustedFeb 11 2018 10:10:15Warning (5)MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1Feb 11 2018 11:46:06Critical (3)No Ranging Response received - T3 time-outFeb 11 2018 11:46:49Critical (3)Ranging Request Retries exhaustedFeb 11 2018 11:46:49Critical (3)Unicast Maintenance Ranging attempted - No response - Retries exhaustedFeb 11 2018 11:47:03Critical (3)Ranging Request Retries exhaustedFeb 11 2018 11:47:03Critical (3)Unicast Maintenance Ranging attempted - No response - Retries exhaustedFeb 11 2018 11:47:09Critical (3)No Ranging Response received - T3 time-outFeb 11 2018 11:50:35Warning (5)MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1Feb 11 2018 11:52:46Critical (3)No Ranging Response received - T3 time-outFeb 11 2018 11:57:05Critical (3)Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time outFeb 11 2018 11:57:26Critical (3)No Ranging Response received - T3 time-outFeb 11 2018 11:57:41Warning (5)MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1&nbsp;And there are times where we ahve issues and nothing is in the modem logs.&nbsp; I am have 2 year old R7000 amd this modem.&nbsp; Along with unmanged GB switches.&nbsp; We have 17-30 devices connected (depends on who is here).&nbsp; 10 are wired.&nbsp; Others are TV's, Rokus, samrtphones (andorid) and tablets (also android).&nbsp; Nothing ahs changed with our hardware and devices.&nbsp; For past 2 months have had nothing but intermittent issues.&nbsp;We work from home.&nbsp; Once is a soft VPN and and another is a deciated VPN router.&nbsp; Been doing this for 2 years with no issues.&nbsp; Company Network techs say we have high latency and packet loss.Not sure where to go now.&nbsp; ISP is still working with us.ProcedureStatusComment&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Acquire Downstream Channel657000000 HzLocked&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Connectivity StateOkOperational&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Boot StateOkOperational&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;SecurityEnabledBPI+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;IP Provisioning ModeHonor MDDhonorMdd(4)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Downstream Bonded ChannelsChannelLock StatusModulationChannel IDFrequencyPowerSNRCorrectablesUnCorrectables1LockedQAM 2561495000000 Hz2.2 dBmV40.3 dB702LockedQAM 2562501000000 Hz2.2 dBmV40.9 dB003LockedQAM 2563507000000 Hz2.4 dBmV40.9 dB004LockedQAM 2564513000000 Hz2.0 dBmV40.3 dB005LockedQAM 2565519000000 Hz1.7 dBmV40.3 dB006LockedQAM 2566525000000 Hz1.7 dBmV40.3 dB007LockedQAM 2567531000000 Hz1.7 dBmV40.3 dB008LockedQAM 2568537000000 Hz1.7 dBmV40.9 dB009LockedQAM 2569543000000 Hz1.5 dBmV40.3 dB0010LockedQAM 25610549000000 Hz1.7 dBmV40.3 dB0011LockedQAM 25611555000000 Hz1.5 dBmV40.3 dB0012LockedQAM 25612561000000 Hz1.7 dBmV40.9 dB0113LockedQAM 25613567000000 Hz1.5 dBmV40.3 dB0014LockedQAM 25614573000000 Hz1.4 dBmV40.3 dB0015LockedQAM 25615579000000 Hz1.2 dBmV40.3 dB0016LockedQAM 25616585000000 Hz1.4 dBmV40.9 dB0017LockedQAM 25617591000000 Hz1.4 dBmV38.9 dB0018LockedQAM 25618597000000 Hz1.4 dBmV40.3 dB0019LockedQAM 25619603000000 Hz1.4 dBmV40.3 dB0020LockedQAM 25620609000000 Hz1.4 dBmV40.3 dB0021LockedQAM 25621615000000 Hz1.5 dBmV40.3 dB0022LockedQAM 25622621000000 Hz1.2 dBmV38.9 dB0023LockedQAM 25623627000000 Hz1.2 dBmV38.9 dB0024LockedQAM 25624633000000 Hz1.2 dBmV39.5 dB0025LockedQAM 25625639000000 Hz1.2 dBmV39.2 dB0026LockedQAM 25626645000000 Hz1.2 dBmV39.5 dB0027LockedQAM 25627651000000 Hz1.2 dBmV39.5 dB0028LockedQAM 25628657000000 Hz0.9 dBmV38.9 dB0029Not LockedN/AN/A0 Hz0.0 dBmV0.0 dB0030Not LockedN/AN/A0 Hz0.0 dBmV0.0 dB0031Not LockedN/AN/A0 Hz0.0 dBmV0.0 dB0032Not LockedN/AN/A0 Hz0.0 dBmV0.0 dB00&nbsp;Upstream Bonded ChannelsChannelLock StatusUS Channel TypeChannel IDSymbol RateFrequencyPower&nbsp;&nbsp;1LockedATDMA65120 Ksym/sec23000000 Hz39.5 dBmV&nbsp;&nbsp;2LockedATDMA55120 Ksym/sec29400000 Hz40.8 dBmV&nbsp;&nbsp;3LockedATDMA45120 Ksym/sec35800000 Hz41.0 dBmV&nbsp;&nbsp;4Not LockedN/AUnknown0 Ksym/sec0 Hz0.0 dBmV&nbsp;&nbsp;5Not LockedN/AUnknown0 Ksym/sec0 Hz0.0 dBmV&nbsp;&nbsp;6Not LockedN/AUnknown0 Ksym/sec0 Hz0.0 dBmV&nbsp;&nbsp;7Not LockedN/AUnknown0 Ksym/sec0 Hz0.0 dBmV&nbsp;&nbsp;8Not LockedN/AUnknown0 Ksym/sec0 Hz0.0 dBmV&nbsp;&nbsp;&nbsp;Current System Time: Sun Feb 11 20:24:56 2018

vkdelta · Answer

your signal level is fine but you have RF problem where one of the US is not connected correctly to your node.

that is why you are seeing these messages.

Unicast Maintenance Ranging attempted - No response - Retries exhausted

This means, Modem tried atleast 16 times for that US and never recieved response from headend.

Forum Discussion

How to verify the modem is not the issue (BYOM) CM700

1 Reply

Feb 11 2018 10:05:26	Critical (3)	Ranging Request Retries exhausted
Feb 11 2018 10:05:26	Critical (3)	Unicast Maintenance Ranging attempted - No response - Retries exhausted
Feb 11 2018 10:10:15	Warning (5)	MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1
Feb 11 2018 11:46:06	Critical (3)	No Ranging Response received - T3 time-out
Feb 11 2018 11:46:49	Critical (3)	Ranging Request Retries exhausted
Feb 11 2018 11:46:49	Critical (3)	Unicast Maintenance Ranging attempted - No response - Retries exhausted
Feb 11 2018 11:47:03	Critical (3)	Ranging Request Retries exhausted
Feb 11 2018 11:47:03	Critical (3)	Unicast Maintenance Ranging attempted - No response - Retries exhausted
Feb 11 2018 11:47:09	Critical (3)	No Ranging Response received - T3 time-out
Feb 11 2018 11:50:35	Warning (5)	MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1
Feb 11 2018 11:52:46	Critical (3)	No Ranging Response received - T3 time-out
Feb 11 2018 11:57:05	Critical (3)	Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out
Feb 11 2018 11:57:26	Critical (3)	No Ranging Response received - T3 time-out
Feb 11 2018 11:57:41	Warning (5)	MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1

Procedure	Status	Comment
Acquire Downstream Channel	657000000 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	QAM 256	1	495000000 Hz	2.2 dBmV	40.3 dB	7	0
2	Locked	QAM 256	2	501000000 Hz	2.2 dBmV	40.9 dB	0	0
3	Locked	QAM 256	3	507000000 Hz	2.4 dBmV	40.9 dB	0	0
4	Locked	QAM 256	4	513000000 Hz	2.0 dBmV	40.3 dB	0	0
5	Locked	QAM 256	5	519000000 Hz	1.7 dBmV	40.3 dB	0	0
6	Locked	QAM 256	6	525000000 Hz	1.7 dBmV	40.3 dB	0	0
7	Locked	QAM 256	7	531000000 Hz	1.7 dBmV	40.3 dB	0	0
8	Locked	QAM 256	8	537000000 Hz	1.7 dBmV	40.9 dB	0	0
9	Locked	QAM 256	9	543000000 Hz	1.5 dBmV	40.3 dB	0	0
10	Locked	QAM 256	10	549000000 Hz	1.7 dBmV	40.3 dB	0	0
11	Locked	QAM 256	11	555000000 Hz	1.5 dBmV	40.3 dB	0	0
12	Locked	QAM 256	12	561000000 Hz	1.7 dBmV	40.9 dB	0	1
13	Locked	QAM 256	13	567000000 Hz	1.5 dBmV	40.3 dB	0	0
14	Locked	QAM 256	14	573000000 Hz	1.4 dBmV	40.3 dB	0	0
15	Locked	QAM 256	15	579000000 Hz	1.2 dBmV	40.3 dB	0	0
16	Locked	QAM 256	16	585000000 Hz	1.4 dBmV	40.9 dB	0	0
17	Locked	QAM 256	17	591000000 Hz	1.4 dBmV	38.9 dB	0	0
18	Locked	QAM 256	18	597000000 Hz	1.4 dBmV	40.3 dB	0	0
19	Locked	QAM 256	19	603000000 Hz	1.4 dBmV	40.3 dB	0	0
20	Locked	QAM 256	20	609000000 Hz	1.4 dBmV	40.3 dB	0	0
21	Locked	QAM 256	21	615000000 Hz	1.5 dBmV	40.3 dB	0	0
22	Locked	QAM 256	22	621000000 Hz	1.2 dBmV	38.9 dB	0	0
23	Locked	QAM 256	23	627000000 Hz	1.2 dBmV	38.9 dB	0	0
24	Locked	QAM 256	24	633000000 Hz	1.2 dBmV	39.5 dB	0	0
25	Locked	QAM 256	25	639000000 Hz	1.2 dBmV	39.2 dB	0	0
26	Locked	QAM 256	26	645000000 Hz	1.2 dBmV	39.5 dB	0	0
27	Locked	QAM 256	27	651000000 Hz	1.2 dBmV	39.5 dB	0	0
28	Locked	QAM 256	28	657000000 Hz	0.9 dBmV	38.9 dB	0	0
29	Not Locked	N/A	N/A	0 Hz	0.0 dBmV	0.0 dB	0	0
30	Not Locked	N/A	N/A	0 Hz	0.0 dBmV	0.0 dB	0	0
31	Not Locked	N/A	N/A	0 Hz	0.0 dBmV	0.0 dB	0	0
32	Not Locked	N/A	N/A	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	6	5120 Ksym/sec	23000000 Hz	39.5 dBmV
2	Locked	ATDMA	5	5120 Ksym/sec	29400000 Hz	40.8 dBmV
3	Locked	ATDMA	4	5120 Ksym/sec	35800000 Hz	41.0 dBmV
4	Not Locked	N/A	Unknown	0 Ksym/sec	0 Hz	0.0 dBmV
5	Not Locked	N/A	Unknown	0 Ksym/sec	0 Hz	0.0 dBmV
6	Not Locked	N/A	Unknown	0 Ksym/sec	0 Hz	0.0 dBmV
7	Not Locked	N/A	Unknown	0 Ksym/sec	0 Hz	0.0 dBmV
8	Not Locked	N/A	Unknown	0 Ksym/sec	0 Hz	0.0 dBmV

Current System Time: Sun Feb 11 20:24:56 2018