Poor Wifi / Low Speeds

[ScottSudale88]

We recently had Virgin Media installed (6th Jan) and have been having some issues with the wifi and performance etc - We have signed up for Volt Gig 1 Fibre Broadband. After reading about other users having issues with the Hub 4, I went and bought a router and used the hub in modem mode - This didn't seem to improve anything.

My partner is working from home and when she is on teams it is shocking! Video constantly freezes and is barely useable, same with facetime etc... This includes over wifi and wired connections. Now thinking this could be something to do with upload speeds? I've currently got my mac wired into the Hub 4 and below are the results from Samknows.

[ScottSudale88]

Here is a screengrab of the wifi speed - This is in the same room as the router, a foot or two away. Even when we get this upto around 2-300mbps, images don't load straight away on social media platforms etc.

 

[gary_dexter]

What are wired speeds like?

[ScottSudale88]

Hi Gary,

The three screenshots in the first post are all wired into the Hub 4.

As well as the issues we are having I believe we should also be getting higher download speeds too? They are below the minimum guaranteed?

[carl_pearce]

---

@ScottSudale88 wrote:

Hi Gary,

The three screenshots in the first post are all wired into the Hub 4.

As well as the issues we are having I believe we should also be getting higher download speeds too? They are below the minimum guaranteed?

---

Keep in mind minimum speeds are on wired devices, not wireless. There are too many standards across all wireless devices to be confident of the speeds you will get.

1. Create a BQM here post the live link.
2. Access your HUB on 192.168.0.1 or 192.168.100.1 in modem mode , 'Check Router Status', and post the 'Upstream', 'Downstream', and 'Networklog' tab data, across several posts, pressing 'post' a second time if an error message occurs. If the 'Check Router Status' option isn't available log into the HUB (Password (NOT wireless key!) on the base), and navigate to 'Advanced settings / Tools / Network status' to get the same info.

I have a feeling there is something wrong with your upstream channels, which can cause issues with downstream.

[ScottSudale88]

Hi Carl,

All those speeds I posted are wired...

BQM here: 

https://www.thinkbroadband.com/broadband/monitoring/quality/share/463ee4fbfe07dca4c5fb374d5a651d0e39f2f0b6

Other results below...

3.0 Upstream channels

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

1	46200000	58.8	5120 KSym/sec	64QAM	11
2	39400000	58.8	5120 KSym/sec	32QAM	12
3	53700000	58.8	5120 KSym/sec	16QAM	10
4	60300000	58.8	5120 KSym/sec	64QAM	9

3.0 Upstream channels

Channel Channel Type T1 Timeouts T2 Timeouts T3 Timeouts T4 Timeouts

1	US_TYPE_STDMA	0	0	2	0
2	US_TYPE_STDMA	0	0	0	0
3	US_TYPE_STDMA	0	0	1	0
4	US_TYPE_STDMA	0	0	0	0

[ScottSudale88]

3.0 Downstream channels

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

26	339000000	1.4	36.6	QAM256	26
1	139000000	2.8	35.8	QAM256	1
2	147000000	2.9	36.4	QAM256	2
3	155000000	3.3	36.6	QAM256	3
4	163000000	3.8	36.4	QAM256	4
5	171000000	4	36.6	QAM256	5
6	179000000	4.3	36.4	QAM256	6
7	187000000	4.4	36.4	QAM256	7
8	195000000	4.4	36.6	QAM256	8
9	203000000	4.4	36.6	QAM256	9
10	211000000	4.1	36.6	QAM256	10
11	219000000	4	36.6	QAM256	11
12	227000000	3.5	36.4	QAM256	12
13	235000000	2.9	36.4	QAM256	13
14	243000000	2.2	36.6	QAM256	14
15	251000000	2	36.6	QAM256	15
16	259000000	1.2	36.4	QAM256	16
17	267000000	0.9	36.6	QAM256	17
18	275000000	0.6	36.6	QAM256	18
19	283000000	0.1	36.4	QAM256	19
20	291000000	-0.1	36.4	QAM256	20
21	299000000	-0.3	36.4	QAM256	21
22	307000000	0.4	36.4	QAM256	22
23	315000000	0.8	36.6	QAM256	23
24	323000000	1.2	36.6	QAM256	24
25	331000000	0.9	36.6	QAM256	25
27	347000000	2	36.6	QAM256	27
28	355000000	2.2	36.6	QAM256	28
29	363000000	2.5	37.4	QAM256	29
30	371000000	2.7	36.6	QAM256	30
31	379000000	2.5	36.4	QAM256	31

3.0 Downstream channels

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

26	Locked	36.609653	0	0
1	Locked	35.779911	0	0
2	Locked	36.386890	0	0
3	Locked	36.609653	0	0
4	Locked	36.386890	0	0
5	Locked	36.609653	0	0
6	Locked	36.386890	0	0
7	Locked	36.386890	0	0
8	Locked	36.609653	0	0
9	Locked	36.609653	0	0
10	Locked	36.609653	0	0
11	Locked	36.609653	0	0
12	Locked	36.386890	0	0
13	Locked	36.386890	0	0
14	Locked	36.609653	0	0
15	Locked	36.609653	0	0
16	Locked	36.386890	0	0
17	Locked	36.609653	0	0
18	Locked	36.609653	0	0
19	Locked	36.386890	0	0
20	Locked	36.386890	0	0
21	Locked	36.386890	0	0
22	Locked	36.386890	0	0
23	Locked	36.609653	0	0
24	Locked	36.609653	0	0
25	Locked	36.609653	0	0
27	Locked	36.609653	0	0
28	Locked	36.609653	0	0
29	Locked	37.355988	0	0
30	Locked	36.609653	0	0
31	Locked	36.386890	0	0

3.1 Downstream channels

Channel Channel Width (MHz) FFT Type Number of Active Subcarriers Modulation (Active Profile) First Active Subcarrier (Hz)

159

96

4K

1880

QAM4096

424

3.1 Downstream channels

Channel ID Lock Status RxMER Data (dB) PLC Power (dBmV) Correcteds (Active Profile) Uncorrectables (Active Profile)

159

Locked

40

1.8

16044907

0

[ScottSudale88]

Network Log

Time Priority Description

Thu 01/01/1970 00:01:25	3	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Sun 16/01/2022 15:05:09	5	MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Sun 16/01/2022 15:06:12	6	Received REG-RSP while in REG-HOLD1 state;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Sun 16/01/2022 15:08:13	3	Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Sun 16/01/2022 15:09:40	3	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Sun 16/01/2022 15:10:04	5	ToD request sent - No Response received;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Sun 16/01/2022 15:10:19	5	MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Sun 16/01/2022 15:10:32	3	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;

[jbrennand · Accepted solution]

Carl was right - your upstream connection is awful

Power levels all too high (~51dBmV is the recommended maximum) and the qam's should all be at 64.

[carl_pearce]

And BQM looks terrible!