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Repeated internet connection loss and huge numbers of packets lost

TimTheVanMan
Joining in

For many months now we have had repeated occurances of a total loss of internet conneciton through our hub 3. During these events we still have wifi conneciton to our devices. The hub3 does not show any problems or concerns with the upstream or downstream connections, but simply will not provide any internet connection. On these occasions only a power cycle will correct the issue. I can connect to the hub 3 during the internet connection failure and have tried a soft reboot, but that does not correct the issue. The hub comes back up with no internet connection. Even a factory reset from within the menu does not restore internet. Only a power cycle fixes it.

TV through the Tivo box continues to work through most of these issues.

I havent found any tools to understand what is causing the loss of internet conenction while maintaining good wifi and no issues in the hub3.

The hub 3 is in modem more with a netgear router as wifi performance was poor from the hub3 in the early months we had it (years ago), seemingly requiring regular factpry resets from the pinhole in the back to restore wifi service. I have a home automation that requires some configuraiton to forward some ports. Setting this up in the hub3 is a real pain !

When its working, speed is around 40Mbs, which is nowhere near the average 264Mbs for our M250 package. 

 

A recent quality monitor appears to show a huge number of lost packets I think ?

<a title="Broadband Ping" href="https://www.thinkbroadband.com/broadband/monitoring/quality/share/ba0fc960aeaca908cebc5853a7a34abc57b53319-30-11-2024"><img alt="My Broadband Ping - My virgin monitor" src="https://www.thinkbroadband.com/broadband/monitoring/quality/share/thumb/ba0fc960aeaca908cebc5853a7a34abc57b53319-30-11-2024.png" /></a>
https://www.thinkbroadband.com/broadband/monitoring/quality/share/ba0fc960aeaca908cebc5853a7a34abc57b53319-30-11-2024
https://www.thinkbroadband.com/broadband/monitoring/quality/share/e162a056c236e848081894390f34f53f8dc71571

 

Hub3 info : Downstream

Channel Frequency (Hz) Power (dBmV) SNR (dB) Modulation Channel ID

11390000002.535256 qam1
21470000002.434256 qam2
31550000002.435256 qam3
4163000000235256 qam4
51710000001.735256 qam5
61790000001.235256 qam6
71870000001.235256 qam7
81950000001.436256 qam8
92670000000.737256 qam17
10275000000137256 qam18
112830000001.537256 qam19
122910000001.937256 qam20
132990000002.436256 qam21
143070000002.537256 qam22
153150000002.738256 qam23
16323000000338256 qam24
173310000003.238256 qam25
183390000003.538256 qam26
193470000003.538256 qam27
20355000000338256 qam28
21363000000238256 qam29
223710000001.738256 qam30
233790000001.238256 qam31
24387000000138256 qam32



Downstream bonded channels

Channel Locked Status RxMER (dB) Pre RS Errors Post RS Errors

1Locked35.5306000
2Locked34.91078170
3Locked35.7253550
4Locked35.7162480
5Locked35.7114770
6Locked35.5200500
7Locked35.7272780
8Locked36.319240
9Locked37.33060
10Locked37.32030
11Locked37.31330
12Locked37.61470
13Locked36.622415
14Locked37.61710
15Locked38.91720
16Locked38.91660
17Locked38.61240
18Locked38.61340
19Locked38.91380
20Locked38.61130
21Locked38.61050
22Locked38.61400
23Locked38.61340
24Locked38.61270

 

Hub3 info : Upstream

Channel Frequency (Hz) Power (dBmV) Symbol Rate (ksps) Modulation Channel ID

14960011447.3512016 qam1
23660028246.5512016 qam3
32360007446.5512016 qam5
43010009446.5512016 qam4
54310023146.8512016 qam2



Upstream bonded channels

Channel Channel Type T1 Timeouts T2 Timeouts T3 Timeouts T4 Timeouts

1ATDMA0020
2ATDMA0090
3ATDMA0000
4ATDMA00620
5ATDMA0000

 

 

12 REPLIES 12

TimTheVanMan
Joining in
 Tims BQM 

Sorry - Im not sure the best way to include the BQM images in the post. Hopefully the links work !

Client62
Alessandro Volta

Hub3 info : Upstream

Channel Frequency (Hz) Power (dBmV) Symbol Rate (ksps) Modulation Channel ID

14960011447.3512016 qam1
23660028246.5512016 qam3
32360007446.5512016 qam5
43010009446.5512016 qam4
54310023146.8512016 qam2

The Modulation mode should be two modes higher faster i.e. 64 qam on all 5 Upstream Channels.
This local noise issue is a fault for VM to rectify, it may well be affecting other customers in your street.

Adduxi
Very Insightful Person
Very Insightful Person

You also noted you are in modem mode with a Netgear Router and yet you talk about setting up port forwarding on the Hub 3? 

I'm a Very Insightful Person, I'm here to share knowledge, I don't work for Virgin Media. Learn more

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Client62
Alessandro Volta

Beginning to smell a rattus rattus ?

TimTheVanMan
Joining in

Thanks for your interest @adduxi. I got fed up with having to set up port forwarding on the hub3, after each factory reset to reinitialise the wifi. That was the motivation to switch to modem mode and add a separate router where port forwarding was simple and quick. Initially that worked well, but for the last year or so i have had to power cycle the hub3 at least once a month to reestablish an internet connection. During the internet connection failure, the netgear wifi is fine, and i can acecss the hub3 menus. Soft reboot does not restore an internet connection, and even a menu based factory reset doesnt. Only a power cycle works.

Hi @TimTheVanMan 

Welcome back to the community forums. 

Sorry to hear of your ongoing service issues. 

Checking the systems on our side we cannot see any issues that might explain this today. 

With the Hub in modem mode, we aren't able to run other checks on our side as it limits what we can do and see. 

I'm also not able to see the BQM you've tried to link. You can create a live link on the thin broadband site itself and then attach this to your post/response so we can see what you're seeing. 

For further support, we'd request that the hub be moved into router mode so we can troubleshoot further as well please. 

Here to help 🙂
Virgin Media Forums Agent
Carley

TimTheVanMan
Joining in

Thanks for your review of the data @Client62. I'm not sure of the reason for the modulation being restricted to 16 rather than 64 ? From some googling and a limited knowledge base, the power levels dont appear too concerning?

Virgin dont show any outages or other issues in our area, and dont show any issues with our conneciton based on their online tools.

TimTheVanMan
Joining in

i note that todays BQM is also a mass of red, which sesms to indicate a massive issue with dropped packets - so how can that not be a detectable broadband quality issue ?

[url=https://www.thinkbroadband.com/broadband/monitoring/quality/share/1b909dffad169a15a07dc9367c20e...  

Client62
Alessandro Volta

Assuming this is your all red BQM, consider either 1) it is the wrong IP or 2) your own router does not reply to WAN pings.

https://www.thinkbroadband.com/broadband/monitoring/quality/share/1b909dffad169a15a07dc9367c20ecfff9...