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BethAE
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Gig1 not at Gigabit Speeds and ethernet is much slower than the WiFi

Good afternoon all,

Issue

I have just moved to Virgin Media with a brand new install in my area and I have opted for the Gig1 broadband speeds. Since the install (Yesterday), I have only once managed to achieve a speed at 500mb. The average is between 200-400 on WiFi and 100-200 on Ethernet.

Equipment I am using

I have tried this on numerous devices. I have tried Ethernet on a Lenovo Thinkpad X280 with a Thunderbolt 3 Gen 2 dock, both with 10/100/1000 ethernet. I have also tried ethernet on a 2020 Intel i5 MacBook Air with a 10/100/1000 usb c to ethernet connector. I have also tried wifi on the above, and an iPhone 12, and an iPad Pro 2.

What I have tried

For ethernet, I have tried numerous cables connected directly into the hub 4. I have tried cat5e, cat6 and cat7 cables, all give the same 100-200mb speeds. I have also tried 3 different ethernet usb c adapters.

I have tried the router in both router and modem mode, but no difference in speed. I have done a full pin hole reset, and also rebooted the router a number of times.

I have tried to use SamKnows Real Speed but this is not working? Screenshot 2021-07-15 at 15.22.11.png

I will post all the log details below also. I have also set up a BQM - 

https://www.thinkbroadband.com/broadband/monitoring/quality/share/8cebecaa39bac10d5c063d03a974704c4a...

There is a chance I am being too hasty, and it will get better over time, but I am no where near the Gig1 speeds!

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BethAE
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Re: Gig1 not at Gigabit Speeds and ethernet is much slower than the WiFi

Cable Modem Status

Item

Status

Comments

Cable Modem Status

Online

DOCSIS 3.1

Primary downstream channel

Locked

SC-QAM

Channel Overview

Downstream

Upstream

DOCSIS 3.0 channels

31

4

DOCSIS 3.1 channels

1

0

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BethAE
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Re: Gig1 not at Gigabit Speeds and ethernet is much slower than the WiFi

3.0 Downstream channels

Channel

Frequency (Hz)

Power (dBmV)

SNR (dB)

Modulation

Channel ID

25

330750000

6.8

37.6

QAM256

25

1

138750000

8.2

37.4

QAM256

1

2

146750000

8.2

37.6

QAM256

2

3

154750000

7.9

37.6

QAM256

3

4

162750000

7.9

37.6

QAM256

4

5

170750000

8.2

37.6

QAM256

5

6

178750000

8.3

37.6

QAM256

6

7

186750000

8.3

37.4

QAM256

7

8

194750000

8.4

37.6

QAM256

8

9

202750000

8.4

37.4

QAM256

9

10

210750000

8.3

37.6

QAM256

10

11

218750000

8.3

37.6

QAM256

11

12

226750000

8.2

37.4

QAM256

12

13

234750000

8.1

37.6

QAM256

13

14

242750000

7.9

37.6

QAM256

14

15

250750000

7.6

37.4

QAM256

15

16

258750000

7.3

37.6

QAM256

16

17

266750000

7.2

37.4

QAM256

17

18

274750000

7.2

37.6

QAM256

18

19

282750000

7.3

37.6

QAM256

19

20

290750000

7.1

37.6

QAM256

20

21

298750000

6.8

37.4

QAM256

21

22

306750000

6.5

37.4

QAM256

22

23

314750000

6.5

37.6

QAM256

23

24

322750000

6.6

37.4

QAM256

24

26

338750000

7.1

37.4

QAM256

26

27

346750000

7.1

37.6

QAM256

27

28

354750000

7

37.4

QAM256

28

29

362750000

6.8

37.6

QAM256

29

30

370750000

7.1

37.6

QAM256

30

31

378750000

7.3

37.6

QAM256

31




3.0 Downstream channels

Channel

Lock Status

RxMER (dB)

Pre RS Errors

Post RS Errors

25

Locked

37.636276

0

0

1

Locked

37.355988

0

0

2

Locked

37.636276

0

0

3

Locked

37.636276

0

0

4

Locked

37.636276

0

0

5

Locked

37.636276

0

0

6

Locked

37.636276

0

0

7

Locked

37.355988

0

0

8

Locked

37.636276

0

0

9

Locked

37.355988

0

0

10

Locked

37.636276

0

0

11

Locked

37.636276

0

0

12

Locked

37.355988

0

0

13

Locked

37.636276

0

0

14

Locked

37.636276

0

0

15

Locked

37.355988

0

0

16

Locked

37.636276

0

0

17

Locked

37.355988

0

0

18

Locked

37.636276

0

0

19

Locked

37.636276

0

0

20

Locked

37.636276

0

0

21

Locked

37.355988

0

0

22

Locked

37.355988

0

0

23

Locked

37.636276

0

0

24

Locked

37.355988

0

0

26

Locked

37.355988

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



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

759




3.1 Downstream channels

Channel ID

Lock Status

RxMER Data (dB)

PLC Power (dBmV)

Correcteds (Active Profile)

Uncorrectables (Active Profile)

159

Locked

41

7.9

1200423

0

 

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BethAE
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Message 4 of 13
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Re: Gig1 not at Gigabit Speeds and ethernet is much slower than the WiFi

3.0 Upstream channels

Channel

Frequency (Hz)

Power (dBmV)

Symbol Rate (ksps)

Modulation

Channel ID

1

39400000

26

5120 KSym/sec

64QAM

12

2

46200000

26

5120 KSym/sec

64QAM

11

3

53700000

26

5120 KSym/sec

64QAM

10

4

60300000

26

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

0

0

2

US_TYPE_STDMA

0

0

0

0

3

US_TYPE_STDMA

0

0

0

0

4

US_TYPE_STDMA

0

0

0

0

 

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BethAE
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Message 5 of 13
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Re: Gig1 not at Gigabit Speeds and ethernet is much slower than the WiFi

General Configuration

Network access

true

Maximum Number of CPEs

1

Baseline Privacy

true

DOCSIS Mode

3.1

Config file

69834ncxv9873254k;fg87dsf




Primary Downstream Service Flow

SFID

82

Max Traffic Rate

1200000450

Max Traffic Burst

42600

Min Traffic Rate

0




Primary Upstream Service Flow

SFID

81

Max Traffic Rate

55000270

Max Traffic Burst

42600

Min Traffic Rate

0

Max Concatenated Burst

16320

Scheduling Type

bestEffort

 

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BethAE
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Message 6 of 13
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Re: Gig1 not at Gigabit Speeds and ethernet is much slower than the WiFi

Quick update:

I have turned the SH4 into modem mode, and connected a TP-Link Archer AX20 Wifi 6 router in.

This has given me some ethernet speeds that are slightly faster (300mbps) and wifi speeds closest to the router of 600mbps.

Is there any reason the ethernet it still much slower than the wifi?

 

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legacy1
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Alessandro Volta
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Message 7 of 13
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Re: Gig1 not at Gigabit Speeds and ethernet is much slower than the WiFi

Its always odd when ethernet is slower then wifi but is it from the same device? likely its the device and may need reinstalling don't use a AV they may slow you down.

With your own router try disabling the QoS

SamKnows Real Speed only works in router mode so its odd that that too is not working maybe because your speeds are bad that its not letting you do the test?



---------------------------------------------------------------
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BethAE
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Message 8 of 13
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Re: Gig1 not at Gigabit Speeds and ethernet is much slower than the WiFi

Hi Legacy1,
It certainly is strange. 

I have tried turning off my antivirus. One laptop has a VPN for work but even disabling that has no effect. I have tried both WiFi and Ethernet comparatively on all devices possible with the same result, WiFi is always faster. 

With my router, QoS is disabled, only ever me at home during the day so I don’t particularly see the benefit of it 🙂

and I did try Sam knows in router mode on all my devices but it still didn’t find it, which does make me wonder if there is potentially a small fault in the hub4?

I mean it all works for now with no huge issue, but would love for speeds closer to what I pay for and a better ethernet connection 🙂 

many thanks for your responses!

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Kath_F
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Message 9 of 13
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Re: Gig1 not at Gigabit Speeds and ethernet is much slower than the WiFi

Hi BethAE, 

Thanks for your post and welcome to the forums. It's really great having you on board with us in the Community. 

I'm really sorry to hear that you are having issues getting a connection with the higher speeds. 

Taking a look a the Hub stats, it is bringing up a pro-longed signal issue. I can see that some of your power levels are borderline too so I would like to arrange for an engineer to come out to get these resolved. Once those are sorted, if you are still having an issue, we can look further into things then. 

I just need to confirm the address to ensure we are booking the visit on the correct account. I have sent you a private message regarding this. Just click on the little plum envelope at the top right hand side of the page to access your inbox.


Thanks,
 

Kath_F
Forum Team



New around here? To find out more about the Community check out our Getting Started guide


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BethAE
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Message 10 of 13
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Re: Gig1 not at Gigabit Speeds and ethernet is much slower than the WiFi

Thanks Kath,

I have just replied 🙂

 

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