Recent upgrade to 1GB and not much speed improvement at devices

[rmpengilley]

Hi, I upgraded to 1Gb fibre about three months ago and the speeds at my end devices aren't much of an improvement over my previous 350Mb service. I generally top out at 400mbs using a direct connection to my hub. Wifi speeds are slightly better, but I've never had over 500mb. The samknows test, (when it recognises my connection), shows around 1100mb to the router but I'm not getting anywhere near. I have also noticed I have a high number of uncorrectables in the 3.1 downstream channels at 498.

Cable Modem StatusItem Status CommentsChannel Overview Downstream Upstream

Cable Modem Status	Online	DOCSIS 3.1
Primary downstream channel	Locked	SC-QAM
DOCSIS 3.0 channels	31	4
DOCSIS 3.1 channels	1	0

[rmpengilley]

Refresh data

3.0 Downstream channels

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

8	467000000	2.500000	37.355988	QAM256	8
6	451000000	2.700001	37.355988	QAM256	6
7	459000000	2.299999	37.636276	QAM256	7
9	475000000	2.500000	37.636276	QAM256	9
10	483000000	2.400002	37.636276	QAM256	10
11	491000000	2.099998	37.355988	QAM256	11
12	499000000	2.900002	37.636276	QAM256	12
13	507000000	2.400002	37.636276	QAM256	13
14	515000000	2.599998	38.605377	QAM256	14
15	523000000	2.700001	37.636276	QAM256	15
16	531000000	2.900002	37.636276	QAM256	16
17	539000000	2.400002	37.636276	QAM256	17
18	547000000	2.799999	38.605377	QAM256	18
19	555000000	2.500000	37.636276	QAM256	19
20	563000000	1.700001	37.355988	QAM256	20
21	571000000	2.099998	37.636276	QAM256	21
22	579000000	2.099998	38.605377	QAM256	22
23	587000000	1.799999	37.355988	QAM256	23
24	595000000	1.599998	37.636276	QAM256	24
25	603000000	1.700001	37.355988	QAM256	25
26	611000000	1.099998	37.636276	QAM256	26
27	619000000	1.200001	37.636276	QAM256	27
28	627000000	1.700001	37.355988	QAM256	28
29	635000000	1.599998	37.636276	QAM256	29
30	643000000	1.299999	37.636276	QAM256	30
31	651000000	1.599998	37.636276	QAM256	31
32	659000000	1.200001	37.636276	QAM256	32
33	667000000	0.900002	37.355988	QAM256	33
34	675000000	0.900002	37.636276	QAM256	34
35	683000000	0.599998	37.636276	QAM256	35
36	691000000	-0.099998	37.636276	QAM256	36

3.0 Downstream channels

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

8	Locked	37.355988	0	0
6	Locked	37.355988	0	0
7	Locked	37.636276	0	0
9	Locked	37.636276	0	0
10	Locked	37.636276	0	0
11	Locked	37.355988	0	0
12	Locked	37.636276	0	0
13	Locked	37.636276	0	0
14	Locked	38.605377	0	0
15	Locked	37.636276	0	0
16	Locked	37.636276	0	0
17	Locked	37.636276	0	0
18	Locked	38.605377	0	0
19	Locked	37.636276	0	0
20	Locked	37.355988	0	0
21	Locked	37.636276	0	0
22	Locked	38.605377	0	0
23	Locked	37.355988	0	0
24	Locked	37.636276	0	0
25	Locked	37.355988	0	0
26	Locked	37.636276	0	0
27	Locked	37.636276	0	0
28	Locked	37.355988	0	0
29	Locked	37.636276	0	0
30	Locked	37.636276	0	0
31	Locked	37.636276	0	0
32	Locked	37.636276	0	0
33	Locked	37.355988	0	0
34	Locked	37.636276	0	0
35	Locked	37.636276	0	0
36	Locked	37.636276	0	0

3.1 Downstream channels

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

37

96

4K

1880

QAM4096

759

3.1 Downstream channels

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

37

Locked

38

-2.1

2236955605

489

[rmpengilley]

3.0 Upstream channels

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

1	53700000	42.520599	5120 KSym/sec	64QAM	6
2	60300000	43.020599	5120 KSym/sec	64QAM	5
3	39400000	41.520599	5120 KSym/sec	64QAM	8
4	46200000	42.020599	5120 KSym/sec	64QAM	7

3.0 Upstream channels

Channel Channel Type T1 Timeouts T2 Timeouts T3 Timeouts T4 Timeouts

1	US_TYPE_STDMA	0	0	3	0
2	US_TYPE_STDMA	0	0	0	0
3	US_TYPE_STDMA	0	0	104	0
4	US_TYPE_STDMA	0	0	88	0

[rmpengilley]

General Configuration

Network access	true
Maximum Number of CPEs	1
Baseline Privacy	true
DOCSIS Mode	3.1
Config file	cmreg-vmdg640-bbt076-b.cm

Primary Downstream Service Flow

SFID	13814
Max Traffic Rate	1230000450
Max Traffic Burst	42600
Min Traffic Rate	0

Primary Upstream Service Flow

SFID	13813
Max Traffic Rate	55000270
Max Traffic Burst	42600
Min Traffic Rate	0
Max Concatenated Burst	42600
Scheduling Type	bestEffort

[jbrennand]

Can you set up a BQM as below.....

And can you test speeds as below too. It has to be done on an ethernet cable connection, your wifi ones will never get more than 5-600 Mbps as the Hub4 is only Wifi5 so you need wifi6 wireless equipment and devices to see higher.
__________________________________________

As you expect >100Mbps then connect a 1GB enabled computer/laptop, with up to date drivers, via a NEW and working Cat5e/6a ethernet cable, directly to the Hub which you have put into “modem mode”
(https://www.virginmedia.com/help/virgin-media-hub-modem-mode ).

This ensures that NO other devices are connected Then, test speeds at https://speedtest.samknows.com/ - try on 2 different browsers.

If they are still low – boot your device into Windows safe+networking mode - to disable any potentially interfering software - and try again.

There are many posts on here (I have a list of ~30!) where QoS software, unknown/flaky software, old network card drivers, corrupted browsers, bad cables or other connected devices are limiting speeds on tests.

Report back what that gets.

_________________________________

If you haven’t already, set up a free, secure and “offlsite” - “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”. Click the lower link (Share Live Graph) then click generate. Copy the text in the Direct Link box, beware, there may be more text than you can see. On here click the Link icon (2 links chain to the left of the camera icon) In the URL box paste the link you copied and then click OK

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

[rmpengilley]

I set up a BQM this last night and this is what I get so far. I have used my connection with an Asus wifi 6 router and my phone, which is also wifi 6 and didn't see any great results. Will reply with the other speedtest options mentioned when I can get the kids off the internet for half hour.

[jbrennand]

Your BQM image is rejected as you left the i.p. address on it. Either blank it out or post the link to "Share Live Graph" and it will auto-strip" it out.

That said it looks ok to me. Can you try setting up the Asus again like this...
______________________________
Set the Asus with the WAN port set to be in Automatic IP i.e. DHCP (& Nat) mode, it may be set that way anyway. Then, disconnect all cables from your Asus and switch it off and unplug it.

Then, put the VM Hub into modem mode ( https://www.virginmedia.com/help/virgin-media-hub-modem-mode ) and wait for the base light to turn magenta/purple (on a Hub3 - but not on a Hub4!).

Once it’s in modem mode, the VM hub “MUST” then be powered off. Switch your Asus on and make sure it’s fully initialised (leave 5 min) and then put in the ethernet cable from its WAN port to the VM hub (any port will do).

NOW… power up the VM hub and wait 5-10 minutes for The Hub to initialise and and you should get a connection. Use the recommended App to connect any other Mesh units to the first one.

This order only needs to be done the first time you connect the router to the VM hub.

[rmpengilley]

[carl_pearce]

---

@rmpengilley wrote:

---

BQM looks ok to me.

One thing to keep in mind is you'll be limited to around 940Mbps when using a third party router due to the 1Gbps ethernet ports.

What speeds do you get on the speed tester integrated into the ASUS router?

[muffintastic]

Depending on the Asus model and firmware you'll probably be limited by speed.

If you're running a compatible Asus model I suggest upgrading to Merlin's firmware also.

Make sure also depending on the model of the Asus make sure these two option are enabled:

Lastly make sure anything to do with QoS is disabled in the Asus router too.

Don't forget also home grade routers or ISP routers are also limited by CPU speed regardless of 'cores' and memory.