Virgin Media Community

[Cable1998]

Hi,

Need some help, frustration mounting. 🙂

I've upgraded to the Hub4 1Gb a few days ago.

samknows.com/realspeed/ tests consistently give me over 1Gb to the router (Speed to Virgin Media Hub 4). From the Hub4 to any of my PCs and laptops connected directly to the back of any of the 1Gb ports on the Hub4 I'm getting between 80Mb and, if lucky, 200Mb Download speeds. Upload is stable and at the expected speed of 50+Mb.

I've tried everything I can think of. All my cables are rated at CAT 5e, swapped cables, tried different computers, all the machines have 1Gb cards, still the same, all tested directly to the back of the router.

Speedtest Ookla also gives me max 200Mb, this is less than what I used to get with my Hub3.

Any help is appreciated, I am at my wits' end!

Thanks.

[carl_pearce]

---

@Cable1998 wrote:

Hi,

Need some help, frustration mounting. 🙂

I've upgraded to the Hub4 1Gb a few days ago.

samknows.com/realspeed/ tests consistently give me over 1Gb to the router (Speed to Virgin Media Hub 4). From the Hub4 to any of my PCs and laptops connected directly to the back of any of the 1Gb ports on the Hub4 I'm getting between 80Mb and, if lucky, 200Mb Download speeds. Upload is stable and at the expected speed of 50+Mb.

I've tried everything I can think of. All my cables are rated at CAT 5e, swapped cables, tried different computers, all the machines have 1Gb cards, still the same, all tested directly to the back of the router.

Speedtest Ookla also gives me max 200Mb, this is less than what I used to get with my Hub3.

Any help is appreciated, I am at my wits' end!

Thanks.

---

Could you access your HUB on http://192.168.0.1 navigate to 'Advanced Settings/Tools/Network Status' and copy/paste, as text, the 'Downstream', 'Upstream', and 'Network Log' tab data, in several posts, clicking 'Post' twice if an error occurs.

Could you alse create a BQM and post the live link?

[-tony-]

if you are getting 200 then i would suggest its not the cables - from there i have few ideas - have you tried a full reset of the hub4 - after that different speedtest sites 

post the levels from the hub - unlike the hub3 you need to log in

[Cable1998]

Hi carl_pearce,    3.0 Downstream channels

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

1	411000000	0.5	33	QAM256	1
2	419000000	-0.6	32.6	QAM256	2
3	427000000	-1.3	32.2	QAM256	3
4	435000000	-1.8	32	QAM256	4
5	443000000	-1.3	32.2	QAM256	5
6	451000000	-0.9	33	QAM256	6
7	459000000	-1.9	32.3	QAM256	7
8	467000000	-2.7	31.6	QAM256	8
9	475000000	-2.7	32	QAM256	9
10	483000000	-1.3	32.6	QAM256	10
11	491000000	-0.8	33.5	QAM256	11
12	499000000	-0.8	32.7	QAM256	12
13	507000000	-1.6	33.1	QAM256	13
14	515000000	-1.8	33.1	QAM256	14
15	523000000	-1.9	33.5	QAM256	15
16	531000000	-1.9	33.4	QAM256	16
17	539000000	-3.2	32.7	QAM256	17
18	547000000	-3.6	32.3	QAM256	18
19	555000000	-3.6	32.7	QAM256	19
20	563000000	-3.5	33	QAM256	20
21	571000000	-3.4	33	QAM256	21
22	579000000	-4.3	32.6	QAM256	22
23	587000000	-3.9	32.7	QAM256	23
24	595000000	-3.5	33.4	QAM256	24
25	603000000	-3.2	33.5	QAM256	25
26	611000000	-4.2	33	QAM256	26
27	619000000	-5.1	32.2	QAM256	27
28	627000000	-5.9	31.1	QAM256	28
29	635000000	-4.9	32.3	QAM256	29
30	643000000	-5	32.6	QAM256	30
31	651000000	-6.6	31.6	QAM256	31

[Cable1998]

3.0 Downstream channels

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

1	Locked	32.962662	653	0
2	Locked	32.584778	3003	0
3	Locked	32.237156	7689	0
4	Locked	31.993563	13848	0
5	Locked	32.237156	7137	0
6	Locked	32.962662	1403	0
7	Locked	32.321487	6534	0
8	Locked	31.615677	18581	0
9	Locked	31.993563	10960	0
10	Locked	32.584778	1939	0
11	Locked	33.486542	271	0
12	Locked	32.676208	2266	0
13	Locked	33.062504	794	0
14	Locked	33.062504	674	0
15	Locked	33.486542	506	0
16	Locked	33.376591	460	0
17	Locked	32.676208	2370	0
18	Locked	32.321487	5488	0
19	Locked	32.676208	2291	0
20	Locked	32.962662	1094	0
21	Locked	32.962662	1315	0
22	Locked	32.584778	3996	0
23	Locked	32.676208	1946	0
24	Locked	33.376591	392	0
25	Locked	33.486542	306	0
26	Locked	32.962662	1247	0
27	Locked	32.237156	7195	0
28	Locked	31.072100	63479	0
29	Locked	32.321487	5351	0
30	Locked	32.584778	2611	0
31	Locked	31.615677	24073	0

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

33

96

4K

1880

QAM1024

728

3.1 Downstream channelsChannel ID Lock Status RxMER Data (dB) PLC Power (dBmV) Correcteds (Active Profile) Uncorrectables (Active Profile)

33

Locked

30

-9.9

3617554

0

[carl_pearce]

---

@Cable1998 wrote:

Hi carl_pearce,    3.0 Downstream channels

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

1	411000000	0.5	33	QAM256	1
2	419000000	-0.6	32.6	QAM256	2
3	427000000	-1.3	32.2	QAM256	3
4	435000000	-1.8	32	QAM256	4
5	443000000	-1.3	32.2	QAM256	5
6	451000000	-0.9	33	QAM256	6
7	459000000	-1.9	32.3	QAM256	7
8	467000000	-2.7	31.6	QAM256	8
9	475000000	-2.7	32	QAM256	9
10	483000000	-1.3	32.6	QAM256	10
11	491000000	-0.8	33.5	QAM256	11
12	499000000	-0.8	32.7	QAM256	12
13	507000000	-1.6	33.1	QAM256	13
14	515000000	-1.8	33.1	QAM256	14
15	523000000	-1.9	33.5	QAM256	15
16	531000000	-1.9	33.4	QAM256	16
17	539000000	-3.2	32.7	QAM256	17
18	547000000	-3.6	32.3	QAM256	18
19	555000000	-3.6	32.7	QAM256	19
20	563000000	-3.5	33	QAM256	20
21	571000000	-3.4	33	QAM256	21
22	579000000	-4.3	32.6	QAM256	22
23	587000000	-3.9	32.7	QAM256	23
24	595000000	-3.5	33.4	QAM256	24
25	603000000	-3.2	33.5	QAM256	25
26	611000000	-4.2	33	QAM256	26
27	619000000	-5.1	32.2	QAM256	27
28	627000000	-5.9	31.1	QAM256	28
29	635000000	-4.9	32.3	QAM256	29
30	643000000	-5	32.6	QAM256	30
31	651000000	-6.6	31.6	QAM256	31

---

Well it appears you require an engineer visit:

• SNR is not right.
• Downstream power levels should be -6 to +10 to be in spec, 0dB being optimal.
• Your DOCSIS 3.1 channel, that is the tech that allows the full 1Gbps, is also low on power.

[Cable1998]

-tony-

I've reset the Hub4 a few times already, I'd have mentioned it in the original post. Thanks.

[toonwarriors]

I am having the same problems with slow speed with the Hub 4. I’m gonna call and complain about it tomorrow. 

[Cable1998]

3.0 Upstream channels

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

1	60300000	44.3	5120 KSym/sec	64QAM	1
2	53700000	44	5120 KSym/sec	64QAM	2
3	46200000	43.3	5120 KSym/sec	64QAM	3
4	39400000	43.3	5120 KSym/sec	64QAM	4

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

[carl_pearce]

---

@Cable1998 wrote:

3.0 Upstream channels

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

1	60300000	44.3	5120 KSym/sec	64QAM	1
2	53700000	44	5120 KSym/sec	64QAM	2
3	46200000	43.3	5120 KSym/sec	64QAM	3
4	39400000	43.3	5120 KSym/sec	64QAM	4

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

---

Upstream looks ok.