Hub 4 poor connection speed modem mode

[shnerif]

Hi All.

I was recently upgraded to the Hub 4 from the Hub 3 - I run the hub in modem mode attached to google wifi (this dates from before virgin offered the pucks).
I am on the M200 package.

Prior to the upgrade I'd get around 212 down and 20 up.

Since changing to hub 4 I'm currently getting 89.2 down and 22.3 up.  This is as measured by the google wifi. If I go to my pc thats cabled connected to the google wifi (cat 6 cables from gigabit port on pc to gigabit switch) and run a test via Ookla or Broadbandspeedtest.org or broadbandspeedchecker.co.uk I also get around 88 - 89 down and 22 up. This is with no other devices connected.

Power cycling the hub returns me to 210 - 212 down for about a day and then it drops back to 88 - 90 down.

This is tedious and obviously not what I'm paying for.  I dont want to switch out of modem mode because the hub doesnt provided decent wifi upstairs (hence having had a google wifi set for many years).

Does anyone have any advice on what i can do ?  I thought i'd ask here as i know if i phone they'll give me the usual switch it off and on story - which is fine for about a day.

As i mentioned above - the old hub 3 ran for years without this issue at all - its only happened since changing to hub 4.

[Chris_W1]

Hi shnerif, thanks for the message and sorry to hear that there is a connection issue, the speed test would work best when the hub is in router mode. Would you be able to run a speed test in router mode via a ethernet connection on speedtest.net and let us know the results. ^Chris 

[shnerif]

Hi Chris

I'll try it - but i wont know if it works for a day or two (as a reboot currently "fixes" it temporarily), if you dont mind waiting a bit for an answer.

Thanks

FYI - this is my downstream Router Status feed before making any changes (and speedtest.net says I'm getting 87.55 down right now)

3.0 Downstream channels

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

2	147000000	10.000000	40.366287	QAM256	2
1	139000000	10.000000	40.366287	QAM256	1
3	155000000	10.000000	40.366287	QAM256	3
4	163000000	9.099998	40.366287	QAM256	4
5	171000000	8.800003	40.366287	QAM256	5
6	179000000	8.199997	40.366287	QAM256	6
7	187000000	8.400002	40.946209	QAM256	7
8	195000000	7.900002	40.946209	QAM256	8
9	203000000	8.000000	40.366287	QAM256	9
10	211000000	7.500000	40.366287	QAM256	10
11	219000000	7.400002	40.366287	QAM256	11
12	227000000	6.900002	38.983261	QAM256	12
13	235000000	6.900002	40.366287	QAM256	13
14	243000000	6.500000	40.366287	QAM256	14
15	251000000	6.199997	38.605377	QAM256	15
16	259000000	5.500000	38.983261	QAM256	16
17	267000000	6.400002	38.983261	QAM256	17
18	275000000	7.199997	40.366287	QAM256	18
19	283000000	8.500000	40.946209	QAM256	19
20	291000000	8.800003	40.946209	QAM256	20
21	299000000	9.099998	40.366287	QAM256	21
22	307000000	8.400002	40.366287	QAM256	22
23	315000000	8.500000	40.946209	QAM256	23
24	323000000	7.900002	40.366287	QAM256	24
25	331000000	8.300003	40.366287	QAM256	25
26	339000000	8.000000	40.366287	QAM256	26
27	347000000	8.699997	40.366287	QAM256	27
28	355000000	8.599998	40.366287	QAM256	28
29	363000000	8.800003	40.946209	QAM256	29
30	371000000	8.000000	40.366287	QAM256	30
31	379000000	7.199997	40.366287	QAM256	31

3.0 Downstream channels

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

2	Locked	40.366287	0	0
1	Locked	40.366287	0	0
3	Locked	40.366287	0	0
4	Locked	40.366287	0	0
5	Locked	40.366287	0	0
6	Locked	40.366287	0	0
7	Locked	40.946209	0	0
8	Locked	40.946209	0	0
9	Locked	40.366287	1	0
10	Locked	40.366287	0	0
11	Locked	40.366287	0	0
12	Locked	38.983261	1	0
13	Locked	40.366287	0	0
14	Locked	40.366287	0	0
15	Locked	38.605377	0	0
16	Locked	38.983261	1	0
17	Locked	38.983261	0	0
18	Locked	40.366287	0	0
19	Locked	40.946209	0	0
20	Locked	40.946209	0	0
21	Locked	40.366287	1	0
22	Locked	40.366287	0	0
23	Locked	40.946209	1	0
24	Locked	40.366287	0	0
25	Locked	40.366287	0	0
26	Locked	40.366287	0	0
27	Locked	40.366287	0	0
28	Locked	40.366287	0	0
29	Locked	40.946209	1	0
30	Locked	40.366287	1	0
31	Locked	40.366287	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

QAM2048

424

3.1 Downstream channels

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

159

Locked

43

8.6

2903488473

0

[Tudor]

Downstream power levels are at their maximum recommended value which realistically is too high, the optimal level is 0. Could you please post the upstream figures, these are as important as the downstream. This is because of the way TCP works, every downstream data packet needs a response on the upstream. We can then get a picture of the whole circuit.

[shnerif]

Hi Tudor

Thanks for your reply  - Here's the upstream just taken now:

3.0 Upstream channels

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

1	32600000	41.770599	5120 KSym/sec	64QAM	5
2	39400000	42.270599	5120 KSym/sec	64QAM	4
3	46200000	42.270599	5120 KSym/sec	64QAM	3
4	53700000	42.770599	5120 KSym/sec	64QAM	2

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

[Robert_P]

Hello shnerif

Thanks for posting all of the information requested on the forums.

I've looked at the connection but as the Hub is currently in modem mode not all of the details are available, can we ask you to take the hub out of modem mode and let us know so we can view in more detail please?

Rob

[shnerif]

Hi Rob

I had it in router mode for a day then put it back into modem mode so my home network would function as intended.

I've switched it back to router mode now.  Just prior to switching, i ran a test on speedtest.net and got 169.49 down and 21.14 up.
Post enabling router mode - I'm getting 165.22 down and 21.10 up.

Please let me know when its OK to pop it back to modem mode.

Just to re-iterate, the previous (v3) hub worked absolutely fine - i've only had these speed issues since getting the v4 hub that was offered.

Thanks

[Paul_DN]

Hi shnerif,

Thank you for the update, I have had a look at thing your end and cannot see any issues at all, the speed you are getting for what you are on is good, can you try a pin reset on the Router just to rule out a software issue, first check all the internal connections are hand tight then push a pin/ paper clip in the back of the Router where it says reset, push in until you feel it press then hold in for a timed 1 Minute, do not reboot during or after and allow 15 Minutes to settle afterwards?

Regards

Paul.

[legacy1]

If a reset is needed all the time to get your speed then something is really bad with the hub or sends a signal to allow more speed to the hub which is a bad idea.

[shnerif]

Hi - Thanks for the replies.

I reset the hub last night as the connection speed was down to 90 again - since then and until now its sitting at 210 - 220.

Resetting the thing daily is not an option - neither should it be as I pay for a speed and dont see why i should have to switch it off an on daily to get what i pay for.

Should i ask virgin for a replacement hub?  How to i prove low speeds when after a reset, its back to normal for a while?