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Intermittent signal dropout

MarkyMark71
Tuning in

Hi,

Could someone have a look and advise please, I have been getting intermittent signal dropouts since install a few weeks ago.

Thanks in advance

Downstream bonded channels

Channel Frequency (Hz) Power (dBmV) SNR (dB) Modulation Channel ID
13310000003.937256 qam25
22030000004.636256 qam9
32110000004.537256 qam10
42190000004.537256 qam11
52270000004.537256 qam12
62350000004.537256 qam13
72430000004.337256 qam14
82510000004.337256 qam15
9259000000437256 qam16
10267000000437256 qam17
112750000003.737256 qam18
122830000003.537256 qam19
132910000003.537256 qam20
142990000003.537256 qam21
153070000003.537256 qam22
163150000003.737256 qam23
173230000003.737256 qam24
18339000000437256 qam26
193470000004.137256 qam27
20355000000437256 qam28
21363000000437256 qam29
223710000004.137256 qam30
233790000004.137256 qam31
243870000004.137256 qam32


Downstream bonded channels

Channel Locked Status RxMER (dB) Pre RS Errors Post RS Errors
1Locked37.650
2Locked36.640
3Locked37.360
4Locked37.350
5Locked37.360
6Locked37.350
7Locked37.350
8Locked37.340
9Locked37.350
10Locked37.350
11Locked37.350
12Locked37.340
13Locked37.390
14Locked37.380
15Locked37.360
16Locked37.640
17Locked37.380
18Locked37.330
19Locked37.360
20Locked37.360
21Locked37.650
22Locked37.650
23Locked37.660
24Locked37.300
 
23 REPLIES 23

Here are my current upstream power levels...

Upstream bonded channels

Channel Frequency (Hz) Power (dBmV) Symbol Rate (ksps) Modulation Channel ID
15370015027.8512064 qam2
23940000027.8512064 qam4
34620000027.5512064 qam3
46030000027.8512064 qam1


Upstream bonded channels

Channel Channel Type T1 Timeouts T2 Timeouts T3 Timeouts T4 Timeouts
1ATDMA0000
2ATDMA0000
3ATDMA0000
4ATDMA0000

jbrennand
Very Insightful Person
Very Insightful Person

@MarkyMark71 wrote:

Here are my current upstream power levels...

Upstream bonded channels

Channel Frequency (Hz) Power (dBmV) Symbol Rate (ksps) Modulation Channel ID
15370015027.8512064 qam2
23940000027.8512064 qam4
34620000027.5512064 qam3
46030000027.8512064 qam1


 

@David_Bn   So if all the up channel power levels are way out of range is that ok ?


--------------------
John
--------------------

I do not work for VM. My services: HD TV on VIP (+ Sky Sports & Movies & BT sport), x3 V6 boxes (1 wired, 2 on WiFi) Hub5 in modem mode with Apple Airport Extreme Router +2 Airport Express's & TP-Link Archer C64 WAP. On Volt 350Mbps, Talk Anytime Phone, x2 Mobile SIM only iPhones.

Hi @MarkyMark71, I'd be happy to have an engineer booked in for you to take a closer look into this for you.

Check out the purple envelope in the top right hand corner for a private message from me.

Kindest regards,

David_Bn

Just an update....

2nd engineer visit - ran some checks, made a few changes and said he'd lowered downstream power levels and increased upstream to 36. After he left it DC again and I checked upstream levels and all at 31 or 32.

3rd engineer visit - replaced ONU and intinuator and again tweaked power levels.

However, signal is still disconnecting even though upstream are all 41 or 42

There seems to be a mountain of similar posts on here all with one thing in common - Hub 3

I am not relishing the prospect of phoning VM, its like Groundhog Day

Spoiler
 

Downstream bonded channels

Channel Frequency (Hz) Power (dBmV) SNR (dB) Modulation Channel ID
13310000000.236256 qam25
2203000000136256 qam9
32110000000.936256 qam10
42190000000.936256 qam11
52270000000.736256 qam12
62350000000.736256 qam13
72430000000.536256 qam14
82510000000.536256 qam15
92590000000.236256 qam16
102670000000.236256 qam17
11275000000036256 qam18
12283000000-0.236256 qam19
13291000000-0.236256 qam20
14299000000-0.236256 qam21
15307000000-0.236256 qam22
16315000000036256 qam23
17323000000036256 qam24
183390000000.436256 qam26
193470000000.536256 qam27
203550000000.536256 qam28
213630000000.536256 qam29
223710000000.536256 qam30
233790000000.736256 qam31
243870000000.736256 qam32


Downstream bonded channels

Channel Locked Status RxMER (dB) Pre RS Errors Post RS Errors
1Locked36.6180
2Locked36.3640
3Locked36.3280
4Locked36.3260
5Locked36.3460
6Locked36.3440
7Locked36.3320
8Locked36.3240
9Locked36.6260
10Locked36.6210
11Locked36.6200
12Locked36.6370
13Locked36.3460
14Locked36.3600
15Locked36.6560
16Locked36.6720
17Locked36.6620
18Locked36.6220
19Locked36.3300
20Locked36.3390
21Locked36.6260
22Locked36.6130
23Locked36.3180
24Locked36.680

Spoiler
 

Upstream bonded channels

Channel Frequency (Hz) Power (dBmV) Symbol Rate (ksps) Modulation Channel ID
15370017241.3512064 qam2
23940023341.5512064 qam4
34619999541.3512064 qam3
46030000041.3512064 qam1


Upstream bonded channels

Channel Channel Type T1 Timeouts T2 Timeouts T3 Timeouts T4 Timeouts
1ATDMA0030
2ATDMA0010
3ATDMA0040
4ATDMA0020

 

Network Log

Time Priority Description
20/06/2022 18:08:1criticalNo Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;

Hi MarkyMark71, 

Thanks for coming back to us with an update on this one. 

Taking a look at the hub stats from this end, all is looking fine. The levels are within optimal range and there is nothing out of spec with your hub or area. 

How are things looking since you last posted? 

Pop back and let us know. 

Thanks, 

Kath_F
Forum Team

New around here? Check out the do's and don'ts, in our Community FAQs


Still the same, constantly disconnecting last night for over an hour and had dropouts today.

This clearly isn't just going to remedy itself and as pretty much everything has been replaced it has to be a network issue doesn't it?

What are VM doing to resolve this?

 

 

Natalie_L
Forum Team (Retired)
Forum Team (Retired)

Hi MarkyMArk71,

Thank you for getting back to us and letting us know the problems are still happening. 

Everything is still running within specification from our side but I see that was the case when your Hub stats were showing very high levels for upstream

With that being the case, are you able to access your Hub and post some up to date stats for us to review? 

Thanks, 

 

Nat