Just been upgraded from 10mb to 20mb, but know my internet is slower!
 

Ive been on 10mb for a few years now and never had any trouble, but a couple of weeks ago i was givena free upgrade to 20mb and thats where my problems started.

I mostly use my internet with PS3 and before i could watch iplayer etc no probs but now i get constant buffering and it will rarely work also the PS3 speedtest was always right before showing 10mb or 2.5mb if traffic management had kicked in.
Now i see speeds all over the place ranging from 1mb to 18mb, the PS3 speedtest seems to be telling the truth because when its low iplayer etc wont work and when its high iplayer works fine.

So it seems my internet is no longer stable i am still using the same hub that i had before but i notice thast im now on docsis 2 and im sure i was on docsis 1 before.

So could it be that docsis 2 has too many users in my area and thats slowing me down?

Also does docsis 1 only support up to 10mb?

If it does i would rather go back to docsis 1 and 10mb than put up with this, will virgin downgrade me again?

Thanks for any help.

Re: Just been upgraded from 10mb to 20mb, but know my internet is slower!
 

you said you're having trouble with buffering.

See this thread: http://community.virginmedia.com/t5/...3/td-p/1582824

This is part 3 as the other threads became too long. There are links to the other 2 threads in the first post.

Re: Just been upgraded from 10mb to 20mb, but know my internet is slower!
 

could you post your connection stats please

Re: Just been upgraded from 10mb to 20mb, but know my internet is slower!
 

I recon tiny T is on an ambit 255/256 modem.

Re: Just been upgraded from 10mb to 20mb, but know my internet is slower!
 

I'm not sure but I think anything up to 20Mbps is on the DOCSIS 1.1 network? I didn't think VM used DOCSIS 2.

Re: Just been upgraded from 10mb to 20mb, but know my internet is slower!
 

The 256 modem can handle 20 Mbit.

My speed has been doubled to 20Mbit, I have the 256 modem and I get 20 Mbit solid.

Re: Just been upgraded from 10mb to 20mb, but know my internet is slower!
 

20mbit is on docsis 2 and the ambit 256 can handle 20mbit no probs. What will be interesting is if the op hasnt got an ambit 256 and is using an older modem which is only good for 10mbit such as the terayon tj210.

Anyways, the chances are that there were too many users on 10mbit which have now been banged up to 20mbit and there isnt enough juice to go around.

There were talks many years ago about moving 20mbit users onto docsis 3 so I don't know if you can ring up to get a shub and if you use that you'll be on 20mbit on docsis 3.

Re: Just been upgraded from 10mb to 20mb, but know my internet is slower!
 

Before I upgraded to XXL, I started out on the 20 meg service (just round the corner from Ken btw). Had the Ambit 256 and always got 20 meg.

Downstream was DOCSIS 1.1; upstream was DOCSIS 1.0. It tells you on the upstream stats "Channel Type".

Re: Just been upgraded from 10mb to 20mb, but know my internet is slower!
 

My cable modem info.

Cable Modem Information
Cable Modem : Euro-DOCSIS 1.0/1.1/2.0 Compliant
MAC Address : xxxxxxxxxxxxxxxxxxxxxxxxxxx
Serial Number :xxxxxxxxxxxxxxxxxxxxxxxxxx
Boot Code Version : 1.1.2c
Software Version : 2.111.1002
Hardware Version : 1.9

Re: Just been upgraded from 10mb to 20mb, but know my internet is slower!
 

Your current upstream type, Ken, is on the power levels page.

Re: Just been upgraded from 10mb to 20mb, but know my internet is slower!
 

Cable Modem Upstream
Upstream Lock :
Locked
Upstream Channel ID :
1
Upstream Frequency :
45800000 Hz
Upstream Modulation :
QPSK
Upstream Symbol Rate :
5120 Ksym/sec
Upstream transmit Power Level :
47.2 dBmV
Upstream Mini-Slot Size :
4

Re: Just been upgraded from 10mb to 20mb, but know my internet is slower!
 

it'll say in your log. remove the MAC addy before posting.

Re: Just been upgraded from 10mb to 20mb, but know my internet is slower!
 

Hi Ken

Your upstream is on DOCSIS 2. This is ascertained from your upstream symbol rate (5120K), which is the rate at which the 6.4MHz channel operates and is only supported on DOCSIS 2.

BTW, is your upstream power steady at 47 dBmv? Or does it rise/fluctuate? I've noticed that your upstream modulation is QPSK, which means there's noise on your upstream which isn't good.

Re: Just been upgraded from 10mb to 20mb, but know my internet is slower!
 

i noticed that as well but to be fair on the few occasions I have been on it (not happened in aaaaaaaaages) i didnt suffer performance wise

Re: Just been upgraded from 10mb to 20mb, but know my internet is slower!
 

Ok guys my hub is a netgear vmdg280. Here are my connection stats, if this is not what you wanted then please excuse me im new to this.

Startup Procedure
Procedure Status Comment
Acquire Downstream Channel 282750000 Hz Locked
Connectivity State OK Operational
Boot State OK Operational
Configuration File OK
Security Enabled BPI+


--------------------------------------------------------------------------------

Downstream Channel
Lock Status Locked Modulation QAM256
Channel ID 99 Symbol Rate 6952000
Downstream Frequency 282750000 Hz Downstream Power 9.8 dBmV
SNR 40.9 dBmV


--------------------------------------------------------------------------------

Upstream Channel
Lock Status Locked Modulation QAM16
Channel ID 1 Symbol Rate 5120 Ksym/sec
Upstream Frequency 45800000 Hz Upstream Power 47.2 dBmV


--------------------------------------------------------------------------------

Primary Downstream Service Flow
Downstream(0)
SFID 9870
Max Traffic Rate 21480000 bps
Max Traffic Burst 3044 bytes
Mix Traffic Rate 0 bps


--------------------------------------------------------------------------------

Primary Upstream Service Flow
Upstream(0)
SFID 9869
Max Traffic Rate 1180000 bps
Max Traffic Burst 8160 bytes
Mix Traffic Rate 0 bps
Max Concatenated Burst 8160 bytes
Scheduling Type Best Effort


--------------------------------------------------------------------------------

Current System Time:Tue Dec 04 18:35:55 2012

Re: Just been upgraded from 10mb to 20mb, but know my internet is slower!
 

downstream power is too high dude.

Re: Just been upgraded from 10mb to 20mb, but know my internet is slower!
 

Could this be whats causing my problems then?

What do i do about it then?

Thanks.

Re: Just been upgraded from 10mb to 20mb, but know my internet is slower!
 

get a ping monitor going...

Enable Ping
Ping monitor

Re: Just been upgraded from 10mb to 20mb, but know my internet is slower!
 

you can do one of 2 things dude. You can/should ring tech support to get someone out to fix it or if you dont want the ball ache of calling India, you can buy yourself one of these

http://www.ebay.co.uk/itm/Forward-Pa...item3f1f7834c4



why?

Re: Just been upgraded from 10mb to 20mb, but know my internet is slower!
 

dont know. its in fashion.

Re: Just been upgraded from 10mb to 20mb, but know my internet is slower!
 

You're supposed to be helping the OP, TH!!

Re: Just been upgraded from 10mb to 20mb, but know my internet is slower!
 

ok sorry. no harm in trying this. OP do a pinhole reset on the Hub. it may be glitched. follow these instructions...

http://help.virginmedia.com/system/s...ICLE_ID=322888

Re: Just been upgraded from 10mb to 20mb, but know my internet is slower!
 

Again, TH - putting people to the trouble of a pinhole reset on the offchance it might work is not good advice. All the router settings so painfully (sometimes) established are lost and this is a humble single channel modem and there's really no need.

Sorry, TH.

The first thing that TinyT needs is a forward path attenuator as advised by mon General.

Re: Just been upgraded from 10mb to 20mb, but know my internet is slower!
 

id rather try things to solve a problem while waiting for a tech than do nothing worrying about any settings i had set to the hub. again no harm in trying. its not like the Hub will stop working.

Re: Just been upgraded from 10mb to 20mb, but know my internet is slower!
 

Never quite sure what the levels should be but here is another VMDG280 to compare against

Downstream Channel
Lock Status Locked Modulation QAM256
Channel ID 148 Symbol Rate 6952000
Downstream Frequency 315000000 Hz Downstream Power 6.0 dBmV
SNR 40.8 dBmV

-------------------------------------------------------------------------------

Upstream Channel
Lock Status Locked Modulation QAM16
Channel ID 4 Symbol Rate 5120 Ksym/sec
Upstream Frequency 27400000 Hz Upstream Power 48.7 dBmV

-------------------------------------------------------------------------------

Primary Downstream Service Flow
Downstream(0)
SFID 15334
Max Traffic Rate 21480000 bps
Max Traffic Burst 3044 bytes
Mix Traffic Rate 0 bps

-------------------------------------------------------------------------------

Primary Upstream Service Flow
Upstream(0)
SFID 15333
Max Traffic Rate 1180000 bps
Max Traffic Burst 8160 bytes
Mix Traffic Rate 0 bps
Max Concatenated Burst 8160 bytes
Scheduling Type Best Effort

---------- Post added at 10:03 ---------- Previous post was at 10:01 ----------

lol was just looking for the post I replied to as it had vanished and I seemed to be in another thread altogether. Seems I missed the page 2 link. More caffeine please!

Re: Just been upgraded from 10mb to 20mb, but know my internet is slower!
 

Re: Just been upgraded from 10mb to 20mb, but know my internet is slower!
 

Ken - the point I wished to make is that your upstream is working at half speed because you're on QPSK modulation (2 bits/symbol rather than 4 on QAM16). If that doesn't matter to you, fine. I couldn't live with it because of what I need the internet for.

Cheers

Re: Just been upgraded from 10mb to 20mb, but know my internet is slower!
 

If memory serves it switches to QPSK from QAM usually when there is an issue on the line.

Re: Just been upgraded from 10mb to 20mb, but know my internet is slower!
 

Yeah - Noise. 2 bits/symbol allows for more potholes than 4 bits/symbol.

Re: Just been upgraded from 10mb to 20mb, but know my internet is slower!
 

Ehehehe....

... -_-

Re: Just been upgraded from 10mb to 20mb, but know my internet is slower!
 

I think it is fine for me.

I think it is a case of if it is not broken don't fix it.

Re: Just been upgraded from 10mb to 20mb, but know my internet is slower!
 

someone posted a youtube vid on that link that they said kept buffering, on my infintiy it loaded in under 2 secs fully to end.

whatever is the issue with VM I suspect its far from minor, either severe under capacity which the numerous capacity upgrades they said they have done in the past 2 weeks still not adressing or is some other issues as well with how VM's network is configured, maybe traffic management systems or something as well. On my VM it just doesnt feel right, on BT it loads as fast as it can, on VM it seems like its been throttled back.

Re: Just been upgraded from 10mb to 20mb, but know my internet is slower!
 

Hi all,

I am supposed to get 60Mb but get only half - should I get a new router and only use the superblub as a modem.

Re: Just been upgraded from 10mb to 20mb, but know my internet is slower!
 

create your own thread with all your connection stats.

Re: Just been upgraded from 10mb to 20mb, but know my internet is slower!
 

As what TH says, but yes - whatever might be the problem, even oversubscription in your networkj segment, your chances are best with modem mode, though you do have to lay out dosh for a decent router.