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SuperHub 3 Wifi congestion

Question: Is there a limit to the number of wifi connected devices/total throughput the Superhub 3 can handle? If so, is this written anywhere in consumer-oriented documentation?

My reason for asking is that a member of VM staff has today told me that my wifi (esp 2.4 Ghz) is crowded and it's causing congestion which is causing a problem. The advice is to reduce the number of devices I have connected over wifi or use boosters (which VM will charge me £3/month for).

Thank you in advance for help/advice.

Background/Problem: For the last two weeks my SuperHub 3 has been dropping wifi; a device connected via Ethernet is unaffected and still able to connect to the Internet but wifi devices can't see the SSID and the green wifi light on the hub flashes until the SSID is available again. Outages can last for 30 seconds up to about 2 minutes.

 

Diagnostic steps: I've done a pinhole reset as well as a power off/unplug/replug reboot as advised by VM call centre staff or automated tools.

At the time I had 10 devices connected, 9 to 2.4GHz and 1 to 5Ghz. No new wifi devices have been introduced to the house since April and the Hub hasn't been moved.

We used the VM Connect app around the house and that hasn't reported any issues but the call handler advised they can see weak signals and I can see this in the Superhub network diagnostic tool which reports poor connectivity for multiple devices.

I don't feel that 10 devices is excessive these days and we don't have smart speakers etc. I asked the call handler to send me the documentation he'd found but there was a problem with the network and he couldn't email it to me.

I asked why it's only just started happening if it's due to the number of devices when nothing's changed and was told that the problem has probably been building up for a few months!

(I'm re-posting as this has just vanished from the board for the second time - if it's breaking any forum rules please inform me)

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Alessandro Volta
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Message 2 of 14
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Re: SuperHub 3 Wifi congestion

Deleted.

***********************************************************************************************************************************

Mike Robinson
Retired Aircraft Engineer & Computer Based Training and Learning Designer for many of the world's Military Arms.


My Broadband Ping - 26_Aug_2020

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Message 3 of 14
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Re: SuperHub 3 Wifi congestion

Please can you say how, when the original thread keeps vanishing?

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Alessandro Volta
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Message 4 of 14
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Re: SuperHub 3 Wifi congestion

I've just noticed that.

Spooky.

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Mike Robinson
Retired Aircraft Engineer & Computer Based Training and Learning Designer for many of the world's Military Arms.


My Broadband Ping - 26_Aug_2020

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Message 5 of 14
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Re: SuperHub 3 Wifi congestion


@AndyFC wrote:

Question: Is there a limit to the number of wifi connected devices/total throughput the Superhub 3 can handle? If so, is this written anywhere in consumer-oriented documentation?

My reason for asking is that a member of VM staff has today told me that my wifi (esp 2.4 Ghz) is crowded and it's causing congestion which is causing a problem. The advice is to reduce the number of devices I have connected over wifi or use boosters (which VM will charge me £3/month for).

Thank you in advance for help/advice.

Background/Problem: For the last two weeks my SuperHub 3 has been dropping wifi; a device connected via Ethernet is unaffected and still able to connect to the Internet but wifi devices can't see the SSID and the green wifi light on the hub flashes until the SSID is available again. Outages can last for 30 seconds up to about 2 minutes.

 

Diagnostic steps: I've done a pinhole reset as well as a power off/unplug/replug reboot as advised by VM call centre staff or automated tools.

At the time I had 10 devices connected, 9 to 2.4GHz and 1 to 5Ghz. No new wifi devices have been introduced to the house since April and the Hub hasn't been moved.

We used the VM Connect app around the house and that hasn't reported any issues but the call handler advised they can see weak signals and I can see this in the Superhub network diagnostic tool which reports poor connectivity for multiple devices.

I don't feel that 10 devices is excessive these days and we don't have smart speakers etc. I asked the call handler to send me the documentation he'd found but there was a problem with the network and he couldn't email it to me.

I asked why it's only just started happening if it's due to the number of devices when nothing's changed and was told that the problem has probably been building up for a few months!

(I'm re-posting as this has just vanished from the board for the second time - if it's breaking any forum rules please inform me)


Could you access your router using http://192.168.0.1/ or http://192.168.100.1 for modem mode . You shouldn't need log in, select the 'Check Router Status' option and paste your 'Downstream', 'Upstream', and 'Network Log' tabs? Please copy/paste this data as text, split between multiple posts (Sometimes you have to click 'Post' twice due to an error message).

Could you please create a BQM (Broadband Quality Monitor) here, and post the live link?

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Message 6 of 14
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Re: SuperHub 3 Wifi congestion

Thank you. Downstream bonded channels

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

1723000000-5.536256 qam36
2507000000-2.237256 qam13
3515000000-1.537256 qam14
4523000000-1.537256 qam15
5531000000-1.737256 qam16
6539000000-2.537256 qam17
7547000000-2.537256 qam18
8555000000-2.537256 qam19
9563000000-2.737256 qam20
10571000000-2.238256 qam21
11579000000-2.238256 qam22
12587000000-2.738256 qam23
13595000000-2.737256 qam24
14635000000-3.737256 qam25
15643000000-4.736256 qam26
16651000000-437256 qam27
17659000000-4.737256 qam28
18667000000-437256 qam29
19675000000-536256 qam30
20683000000-536256 qam31
21691000000-4.537256 qam32
22699000000-5.536256 qam33
23707000000-537256 qam34
24715000000-5.936256 qam35



Downstream bonded channels

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

1Locked36.6225312
2Locked38.611160
3Locked37.6106012
4Locked37.618975
5Locked37.6175217
6Locked37.6343352
7Locked38.6272212
8Locked37.3257015
9Locked37.617743
10Locked38.610199
11Locked38.6304436
12Locked38.624484
13Locked37.621021
14Locked37.317240
15Locked36.319300
16Locked37.38270
17Locked37.628850
18Locked37.318310
19Locked36.313087
20Locked37.312858
21Locked37.3168712
22Locked36.618346
23Locked37.38034
24Locked36.6231313
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Message 7 of 14
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Re: SuperHub 3 Wifi congestion

Upstream bonded channels

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

12579998542.8512064 qam12
24620000042.5512064 qam9
33940000042.5512064 qam10
43260000042.5512064 qam11



Upstream bonded channels

Channel Channel Type T1 Timeouts T2 Timeouts T3 Timeouts T4 Timeouts

1ATDMA0000
2ATDMA0010
3ATDMA0010
4ATDMA0000
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Message 8 of 14
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Re: SuperHub 3 Wifi congestion

Network Log

Time Priority Description

21/11/2020 10:55:2noticeLAN login Success;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
21/11/2020 04:21:8criticalNo Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
20/11/2020 14:47:29noticeLAN login Success;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
20/11/2020 14:47:21Warning!LAN login FAILED : Incorrect Username / Password / ConnectionType;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
20/11/2020 14:21:43noticeLAN login Success;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
19/11/2020 09:47:22criticalNo Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
19/11/2020 05:36:42Warning!RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
19/11/2020 05:36:41criticalSYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
18/11/2020 15:04:17criticalNo Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
17/11/2020 12:13:51noticeLAN login Success;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
01/01/1970 00:02:1criticalNo Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
17/11/2020 08:27:0noticeLAN login Success;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
16/11/2020 22:26:32ErrorDHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
16/11/2020 10:15:36noticeLAN login Success;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
14/11/2020 21:30:28criticalNo Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
13/11/2020 16:43:4noticeLAN login Success;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
13/11/2020 08:19:18Warning!RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
12/11/2020 19:48:53noticeLAN login Success;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
12/11/2020 19:48:41Warning!LAN login FAILED : Incorrect Username / Password / ConnectionType;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
12/11/2020 16:19:37noticeLAN login Success;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
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Message 9 of 14
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Re: SuperHub 3 Wifi congestion

I've posted everything as requested but not set up a BQM yet. Overall the conneciton toi the internet is fine, a computer connected via Ethernet doesn't drop the connection.

Note that there aren't any errors in the logs which coincide with the wifi dropping. It's gone three times since my origial post that we've noticed (once yesterday evening and twice this morning).

I've managed to change a few devices to 5Ghz from 2.4 Ghz but it's had no effect.

I also notice there are quite a few forum posts with similar issues about Wifi dropping.

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Message 10 of 14
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Re: SuperHub 3 Wifi congestion

If you remove all the internal walls, water, electronic and electrical devices, metallic pipes and conduits and wrap the whole building in a thick lead shield you will have a good chance of getting decent Wi-Fi from an ISP Hub.

Just a few things that can affect Wi-Fi in the average home …

Mirrors, furniture, fish tanks, people, radiators, walls (some more than others), flooring / ceilings, cordless phones, baby monitors, microwave ovens, fridges & freezers, TVs, next doors Wi-Fi and Wi-Fi equipment, DAB transmitters, the list is endless.

+++++++++++++++++++++++++++++++++++++++++++++++++++

Many people have accepted that the VM Wi-Fi is poor and have purchased third party equipment that is much, much more powerful than the VM supplied kit and once set up have wondered why they waited for so long.

***********************************************************************************************************************************

Mike Robinson
Retired Aircraft Engineer & Computer Based Training and Learning Designer for many of the world's Military Arms.


My Broadband Ping - 26_Aug_2020

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