Slow Speeds

[kirkbysound]

I seem to be having some speed related problems with my VM connection.

I've rebooted the hub and gone through the usual diagnostics. (I'm a Comptia N+ qualified network engineer so hopefully we can skip the turned it off / on again conversation) Tests done over copper ethernet from both the browser and internally in the router.

I'm running through a unifi USG which until recently has got me line speed so it feels a little bit like something might be at fault or has changed. For the last month, I've been getting no more than about 100 megabits / sec on a 350 plan. I can post SNR's etc if you want them. A neighbour has the same issue.

Help much appreciated. My hub is quite old now so perhaps it's time for a replacement. It's spent its life in modem mode though so shouldn't have been too taxed.

Many thanks,

A

[Laurarara]

Also not keen to get the suggestion to reboot - makes no difference.  Turn off at the wall, wait, turn on at the wall - try again etc.

Since the national issues yesterday, my speeds are ultra low today.   

[Adduxi]

100mb sounds like a connection has dropped to 10/100?  I'm assuming you have tried a replacement Cat 6 cable between the Hub and Router?

Also setup a BQM to record and monitor your incoming circuit   www.thinkbroadband.com/ping

Power levels and network log would be useful to post as well.

[kirkbysound]

Thanks for the suggestions.

Everything downstream of the router is connected at a gigabit with no packet loss or latency. As previously mentioned, I'm a qualified network engineer so I've been through my own network checks before asking for help. I've even been in with wireshark in case something internal's been bombing my ethernet network and I've disconnected everything and gone direct in modem mode to no avail.

Current data below. I'd rather not post the log publicly for privacy reasons with MAC data. Looking at it though, there are one or two sporadic "No Ranging Response received criticals" overnight in places but given the drama a few days ago, I wouldn't be surprised if work was going on.. I also have the following tftp config

"DHCP Renew - lease parameters tftp file-cmreg-vmdg505-bbt062+voc-b.cm modified"

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

1	299000000	-1.2	40	256 qam	21
2	139000000	-1.5	38	256 qam	1
3	147000000	-1.4	38	256 qam	2
4	155000000	-1	38	256 qam	3
5	163000000	-1.9	38	256 qam	4
6	171000000	-0.7	38	256 qam	5
7	179000000	-1.7	38	256 qam	6
8	187000000	-1	40	256 qam	7
9	195000000	-1.2	38	256 qam	8
10	203000000	-1.9	38	256 qam	9
11	211000000	-2	38	256 qam	10
12	219000000	-2.7	37	256 qam	11
13	227000000	-2.4	37	256 qam	12
14	235000000	-2.2	40	256 qam	13
15	243000000	-2.4	38	256 qam	14
16	251000000	-2.7	38	256 qam	15
17	259000000	-2.4	38	256 qam	16
18	267000000	-2.2	40	256 qam	17
19	275000000	-2	40	256 qam	18
20	283000000	-1.9	40	256 qam	19
21	291000000	-2	40	256 qam	20
22	307000000	-1.5	40	256 qam	22
23	315000000	-1	40	256 qam	23
24	323000000	-0.4	40	256 qam	24

Downstream bonded channels

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

1	Locked	40.3	226	0
2	Locked	38.6	15995	1628
3	Locked	38.6	1685	678
4	Locked	38.6	2298	617
5	Locked	38.6	3785	892
6	Locked	38.9	2466	746
7	Locked	38.9	998	628
8	Locked	40.3	3195	1001
9	Locked	38.9	911	14
10	Locked	38.9	536	13
11	Locked	38.9	210	0
12	Locked	37.3	552	5
13	Locked	37.6	182	0
14	Locked	40.9	553	12
15	Locked	38.9	3026	664
16	Locked	38.9	1144	20
17	Locked	38.9	214	0
18	Locked	40.3	86	0
19	Locked	40.3	70	9
20	Locked	40.3	83	0
21	Locked	40.3	106	2
22	Locked	40.9	144	0
23	Locked	40.3	87	0
24	Locked	40.9	72	0

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@Adduxi wrote:

100mb sounds like a connection has dropped to 10/100?  I'm assuming you have tried a replacement Cat 6 cable between the Hub and Router?

Also setup a BQM to record and monitor your incoming circuit   www.thinkbroadband.com/ping

Power levels and network log would be useful to post as well.

---

[Client62]

Sure there is not a local issue being reported : 0800 561 0061 it is an automated service.

The speed loss is so huge it is as if you in 10Mb/s half duplex it would be worth a temporary return to Router mode to get a base line for the VM service.

Samknows Realspeed

Speed test the service to a Router mode Hub(3/4/5) + your device with the link below.

https://www.samknows.com/realspeed/

Once the test begins click on: Run full test to see all the stats.

The speed at the Hub should reflect your subscription.

[kirkbysound]

Modem mode directly connected to a computer gives the best baseline which is what I’ve done. The hub acts as a bridge at OSI layer 2 rather than adding the gateway into the equation.

Same results regardless. I’ve got an engineer coming.

My neighbours having the same problems indicate that we possibly have a street box issue and that’s beyond what I can do with the fairly basic tools available as a consumer so over to them.

Thanks everyone for the suggestions but I think this is in the realm of an engineer.

[Adduxi]

Far too many PostRS errors, they should remain at zero on a good circuit.  Looks like noise ingress somewhere.

As you say, one for the VM technician to check and resolve.  All you can do is check all the connections are "finger" tight from the Hub to the outside box, as loose connections can allow noise on the circuit.

[Adri_G]

Hi kirkbysound, thanks for reaching out on our help forums and welcome to the VM community.

Sorry to hear you've been experiencing slow speed issues recently, could you please kindly check our service status page for any reported local network faults?

Also, can you confirm which hub you have in use from the ones listed here and also let us know when your visit has been arranged for?

Please, allow us the time to send someone out and check this if not yet. 
You may keep us posted on this thread regarding how things go and if you need further support.