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Shane101
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Speed queries

Hi,

I purchased the M350 service in October 2020. I had for 3 days a speed of 350mb then since then it is averaging around 250mb. Now i know that this is within the legalities that virgin follow however it is very frustrating that I'm not getting ever since the 3rd day over 260mb. 

I also play World of Warcraft when not working and i have been experiencing some issues on slow response times from button clicks and a few drops.

I have looked at my router and can see RCS Partial Service errors as well as No Ranging Response received errors.

 

Downstream bonded channels

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

12110000005.438256 qam10
22030000005.838256 qam9
32190000005.338256 qam11
4227000000537256 qam12
52350000004.838256 qam13
62430000004.938256 qam14
72510000004.838256 qam15
82590000004.638256 qam16
92670000004.938256 qam17
10275000000538256 qam18
112830000005.138256 qam19
122910000005.338256 qam20
132990000006.138256 qam21
143070000006.538256 qam22
153150000006.338256 qam23
163230000006.138256 qam24
173310000006.638256 qam25
183390000006.538256 qam26
193470000006.538256 qam27
203550000006.338256 qam28
213630000006.538256 qam29
223710000006.538256 qam30
233790000006.138256 qam31
243870000006.138256 qam32



Downstream bonded channels

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

1Locked38.650
2Locked38.650
3Locked38.660
4Locked37.660
5Locked38.660
6Locked38.940
7Locked38.940
8Locked38.950
9Locked38.660
10Locked38.650
11Locked38.940
12Locked38.940
13Locked38.660
14Locked38.900
15Locked38.950
16Locked38.900
17Locked38.650
18Locked38.940
19Locked38.950
20Locked38.9200
21Locked38.940
22Locked38.950
23Locked38.650
24Locked38.900

 

 

Upstream bonded channels

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

16030001942512064 qam1
23940000740.5512064 qam4
34620003440.5512064 qam3
45370001942512064 qam2



Upstream bonded channels

Channel Channel Type T1 Timeouts T2 Timeouts T3 Timeouts T4 Timeouts

1ATDMA0000
2ATDMA0000
3ATDMA0000
4ATDMA0000

 

I hope some kind person can help me with this and shed some light here?

Cheers,

Shane 

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jb66
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Re: Speed queries

Can you explain exactly how your testing the speed to make sure your doing it correctly? 

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Shane101
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Re: Speed queries

Yes Sorry through the site virgin say to use speedtest.net where i created an account and have all the tests saved. 🙂

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Shane101
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Re: Speed queries

Why and what are the Pre RS Errors? Also what are the No Ranging Response received  and RCS Partial Service actually mean? From what i can find on here noise is the cause?

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jb66
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Re: Speed queries

Is this a wired connection? 

What device are you testing it on? 

 

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Shane101
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Re: Speed queries

I'm so sorry I'm not doing very well on my first post!

PC with ethernet connection. Even on my laptop ethernet connection I get similar results.

Would you be able to explain to me those error reports? 🙂

 

This is the Network log. Also the DHCP issue looks like ARRIS INc, thats who virgin use for the router/modem is it not?

 

14/02/2021 12:15:55noticeLAN login Success;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
14/02/2021 12:14:50Warning!LAN login FAILED : Incorrect Username / Password / ConnectionType;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
14/02/2021 05:01:48criticalNo Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
12/02/2021 15:45:49Warning!RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
09/02/2021 17:03:35criticalNo Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
09/02/2021 10:30:41noticeDHCP Renew - lease parameters tftp file-cmreg-vmdg505-bbt062-b.cm modified;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
09/02/2021 10:30:41ErrorDHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
07/02/2021 18:50:1criticalNo Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
05/02/2021 22:30:41noticeDHCP Renew - lease parameters tftp file-cmreg-vmdg505-bbt062-b.cm modified;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
05/02/2021 22:30:41ErrorDHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
02/02/2021 19:54:43criticalNo Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
02/02/2021 10:30:41noticeDHCP Renew - lease parameters tftp file-cmreg-vmdg505-bbt062-b.cm modified;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
02/02/2021 10:30:41ErrorDHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
30/01/2021 15:41:40criticalNo Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
29/01/2021 22:30:41noticeDHCP Renew - lease parameters tftp file-cmreg-vmdg505-bbt062-b.cm modified;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
29/01/2021 22:30:41ErrorDHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
27/01/2021 07:40:19criticalNo Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
26/01/2021 10:30:41noticeDHCP Renew - lease parameters tftp file-cmreg-vmdg505-bbt062-b.cm modified;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
26/01/2021 10:30:41ErrorDHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
23/01/2021 20:35:29Warning!RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
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Shane101
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Re: Speed queries

Anyone?

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jbrennand
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Re: Speed queries

From previous posts
______________________

RCS (Receive Channel Set) Partial Service. The hub ‘knows’, for example that it should have 24 bonded downstream channel but for some reason, generally noise or interference, it is unable to properly lock onto one or more of them. If this happens then rather than the hub simply going offline, it carries on with a slightly degraded service - which may or may not even be noticeable to the user. If and when the conditions improve, the hub will recover it’s full service although this isn’t logged. Getting some of these infrequently is not uncommon and can usually be ignored.
________________________

Ignore all the DHCP messages, they're normal and not really errors at all. The Ranging Request timeouts aren't good but a couple spaced out over days isn't really anything to worry about. The RCS partial service message can be a cause for concern, but again just one or two can be ignored.
The DHCP errors are just the way VM handles DHCP leases, by ignoring the Hub's DHCP lease requests whilst in the RENEW state and only responding to DHCP requests when the Hub goes into the REBIND state when the Hub has to provide some validation info to obtain a DHCP lease and hence an IP address. This is a security feature and does not affect performance in any way.

The No Ranging Response received is when the Hub has not received a response from a Ranging request which the Hub sends every 30secs.
This is usually due to (but not exclusive) to a bit of noise on the upstream which prevents the Ranging Request from reaching the Hub. As the ranging Requests are sent every 30secs. it is not unusual for the odd one or two to get lost in transit. As you are getting an odd T3 every 5 days or so this will be nowhere near the frequency to indicate a significant problem .It is you get a lot of T3s in short succession then you will have a problem.

The Sync Timing Synchronisation error is when the Hub doesn't receive a SYNC message which the CMTS broadcasts at least every 200ms to synchronise the Hub's and CMTS clocks. Without the clocks being in SYNC the Hub cannot lock onto the QAM clock so the Hub goes into partial service mode. If the Hub picks up the next SYNC message 200ms later then everything goes back to normal. So, as with the T3 errors the odd missing SYNC will not affect performance and shouldn't be noticeable unless you are using a real time app such as VOIP when you might notice a minor blip.

--------------------
John
--------------------

I do not work for VM. My services: HD TV on VIP (+ Sky Sports & Movies & BT sport), x3 V6 boxes (1 wired 2 WiFi,) SH2 in modem mode with Airport Extreme Router +2 Airport Express's. On VIVID200, Talk Anytime Phone, x2 Mobile SIM only iPhones.
Shane101
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Re: Speed queries

So what should i do? Is there an issue or not? and Thank you for your explanation i gave you a thumbs up for it 🙂

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jbrennand
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Re: Speed queries

We still dont know whether the issue is just wifi or a network connection one. You did say it was happening on an ethernet cabled connection - so what is happening poor speeds or network disconnection?

If it is actually disconnecting on an ethernet connection, what are the lights on the Hub showing/doing at that time?

Meanwhile can you test speeds and set up a BQM as per below.
___________________________________________________

If you think that you have a BB speed problem, then to check the speeds coming in to your Hub properly, and whether they match what you should be getting, you cannot rely on wifi tests, - no BB supplier guarantees those - only speeds "TO" the Hub are guaranteed.
So, can you test speeds directly like this. As you expect >100Mbps then connect a 1GB enabled computer/laptop, with up to date drivers, via a known good and working Cat5e (or better) ethernet cable, directly to the Hub which you have put into “modem mode” (see VM website for “How To”). Test at speedtest.net (not using their App!) to your nearest VM server - try on 2 different browsers.

If they are still low – boot the device into windows safe+networking mode and try again.

There are many posts on here where 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 and secure “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” (as per instructions on the TB website) when it starts to develop.

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


--------------------
John
--------------------

I do not work for VM. My services: HD TV on VIP (+ Sky Sports & Movies & BT sport), x3 V6 boxes (1 wired 2 WiFi,) SH2 in modem mode with Airport Extreme Router +2 Airport Express's. On VIVID200, Talk Anytime Phone, x2 Mobile SIM only iPhones.
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