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heatherm95
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fluctuating wifi connection/speed

For several weeks we have been experiencing huge fluctuations in our wifi speed, wireless devices reaching 150Mbps+ and dropping to as low as 1 or 2 Mbps. This happens multiple times throughout the day, every day, on all wireless devices (we have no ethernet connections). We also have occasional complete dropouts but these are much less frequent. Sometimes restarting the router helps but not always.

I've attached network details below and in the next message – any advice would be greatly appreciated.

 

Network Log 

Time Priority Description

22/04/2021 15:57:39noticeLAN login Success;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
18/04/2021 07:11:29criticalNo Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
17/04/2021 22:37:51noticeDHCP Renew - lease parameters tftp file-cmreg-vmdg505-bbt060-b.cm modified;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
17/04/2021 22:37:51ErrorDHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
16/04/2021 23:59:8criticalNo Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
14/04/2021 10:37:50noticeDHCP Renew - lease parameters tftp file-cmreg-vmdg505-bbt060-b.cm modified;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
14/04/2021 10:37:50ErrorDHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
11/04/2021 12:35:43criticalNo Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
11/04/2021 07:14:25noticeDHCP Renew - lease parameters tftp file-cmreg-vmdg505-bbt060-b.cm modified;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
11/04/2021 07:14:25ErrorDHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
07/04/2021 19:33:15criticalNo Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
07/04/2021 01:01:15noticeDHCP Renew - lease parameters tftp file-cmreg-vmdg505-bbt060-b.cm modified;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
07/04/2021 01:01:15ErrorDHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
03/04/2021 14:43:34criticalNo Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
03/04/2021 12:48:4noticeDHCP Renew - lease parameters tftp file-cmreg-vmdg505-bbt060-b.cm modified;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
03/04/2021 12:48:4ErrorDHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
02/04/2021 01:13:34criticalNo Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
01/04/2021 20:06:9noticeLAN login Success;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
31/03/2021 04:50:9criticalNo Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
31/03/2021 00:48:4noticeDHCP Renew - lease parameters tftp file-cmreg-vmdg505-bbt060-b.cm modified;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;

 

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heatherm95
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Re: fluctuating wifi connection/speed

Downstream bonded channels

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

13310000009.140256 qam25
22030000008.940256 qam9
32110000008.640256 qam10
42190000008.840256 qam11
52270000008.540256 qam12
62350000008.440256 qam13
72430000008.140256 qam14
82510000007.940256 qam15
92590000007.540256 qam16
102670000007.640256 qam17
112750000007.940256 qam18
122830000008.540256 qam19
132910000008.640256 qam20
142990000008.940256 qam21
153070000008.940256 qam22
16315000000940256 qam23
17323000000940256 qam24
183710000008.940256 qam26
193790000008.940256 qam27
203870000008.540256 qam28
213950000008.140256 qam29
224030000007.940256 qam30
23411000000840256 qam31
24419000000840256 qam32



Downstream bonded channels

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

1Locked40.3180
2Locked40.9310
3Locked40.9240
4Locked40.3190
5Locked40.3140
6Locked40.3160
7Locked40.3210
8Locked40.3340
9Locked40.3310
10Locked40.3340
11Locked40.3220
12Locked40.3210
13Locked40.3200
14Locked40.3340
15Locked40.3170
16Locked40.3350
17Locked40.3310
18Locked40.3150
19Locked40.3220
20Locked40.3190
21Locked40.3210
22Locked40.3290
23Locked40.3300
24Locked40.9210

 

Upstream bonded channels

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

14620000037.5512064 qam11
23940000037.5512064 qam12
35370000037.5512064 qam10
46030001237.5512064 qam9



Upstream bonded channels

Channel Channel Type T1 Timeouts T2 Timeouts T3 Timeouts T4 Timeouts

1ATDMA0000
2ATDMA0000
3ATDMA0010
4ATDMA0010

 

 

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jbrennand
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Re: fluctuating wifi connection/speed

Nothing obvious in the stats - it might be a wifi only issue (rather than a network connection one). Best way to check this is to connect one of your devices to the Hub on a cat5e/6 ethernet cable and see if that remains connected when the wifi devices drop out. Note that any device can be connected on ethernet with the appropriate adapter for any port the device has. You could also set up a BQM as per below to provide additional evidence.

If wired connections are fine and its a wifi only issue, then on a Hub3, try separating the SSID's of the 2.4 and 5 GHz wifi bands by renaming them in the settings and at the same time switch off "channel optimisation" apply and save the settings. All wifi devices will need reconnecting to the best SSID at each location. Also use a wifi scanning App to find the best wifi channels to use (just select and use channels 1,6,11 on 2.4GHz) - this often helps Hub3 users get better wifi performance - but its still no substitute for getting your own better kit 🙂

To address the wifi, VM now supply “wifi Pods” (not “boosters”). Pods are free to “some customers” but most will be charged £5/month and right now they dont have enough supplies to provide them - unless you have a demonstrable wifi issue.

And at that level of investment you would soon pay off that cost by buying a "better" wireless solution that will be yours to own and use forever and which will cure all your wifi woes.
______________________

If you haven’t already, set up a free and secure “Broadband Quality Monitor” to continually monitor the state of your connection and record any true network dropouts , latency issues, packet drops, etc - it will thus allow you to differentiate between those and simple wifi dropouts. It does it 24/7/365 and it keeps a visual record of any/all of your network disconnections, useful data to have to match to the Network logs (in your Hub settings) and also in discussions with VM - note it will take a few hours to start seeing a sensible picture - post up the “link” to the “share live graph” (as per instructions on the TB website) when it starts to develop.

https://www.thinkbroadband.com/broadband/monitoring/quality

--------------------
John
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I do not work for VM. My services: HD TV on VIP (+ Sky Sports & Movies & BT sport), x3 V6 boxes (1 wired 2 WiFi,) SH2 in modem mode with Airport Extreme Router +2 Airport Express's. On VIVID200, Talk Anytime Phone, x2 Mobile SIM only iPhones.
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